This document discusses morphology and provides definitions and examples of key morphological concepts. It covers:
1) Basic concepts like morphemes, free vs. bound morphemes, and stems.
2) Derivational processes like derivation, compounding, reduplication, blending, clipping, acronyms, back formation and more.
3) Inflectional morphology and examples of inflectional affixes in English.
4) Function words in English and cross-linguistic differences.
5) Problems in morphological description like bound stems and unidentifiable elements due to historical influences.
Natural Language Processing Notes aggregated by Ashutosh Agrahari.
These are module-wise notes corresponding to the course conducted at Amity University, India.
Natural Language Processing Notes aggregated by Ashutosh Agrahari.
These are module-wise notes corresponding to the course conducted at Amity University, India.
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3. Yun-Pi Yuan 3
Morphology
I. Basic concepts and terms
II. Derivational processes
III. Inflection
IV. Function words
V. Problems in morphological description
VI. Interaction between morphology and
phonology
VII. Collocations
4. Yun-Pi Yuan 4
Basic Concepts and Terms (1)
Morphology:
The study of the structure of words & how words
are formed (from morphemes)
Morpheme:
The smallest unit of language that carries meaning
(maybe a word or not a word)
A sound-meaning unit
A minimal unit of meaning or grammatical
function
The level of language at which sound and meaning
combine
A. Free morpheme: lexical & functional morpheme
B. Bound morpheme: derivational & inflectional
5. Yun-Pi Yuan 5
Basic Concepts and Terms (2)
Stem (root, base): the morpheme to
which other morphemes are
added
free (e.g. teacher, dresses, unkind)
Stem
bound (e.g. inept, unkempt)
6. Yun-Pi Yuan 6
Free Morpheme
I. Definition: can occur by itself, not attached to
other morphemes
II. Examples: girl, teach, book, class, the, of, etc.
III. Two kinds
A. lexical morpheme (open class)
1. definition: has lexical meaning; new examples
can be freely added
2. examples: N, Verb, Adj, Adv (content words)
B. functional morpheme (closed class)
1. definition: new examples are rarely added (but
not impossible to add)
2. examples: Pro, Prep, Conj, Art. (function words)
7. Yun-Pi Yuan 7
Bound Morpheme
I. Definition: must be attached to another morpheme
II. Derivational morpheme
A. may change syntactic class
B. to form new words
C. examples: -able, un-, re-, etc.
III. Inflectional morpheme
A. Different forms of the same word
B. Not change syntactic class
C. Only 8 kinds in English: -’s, -s (plural nouns), -ing, -
ed/-en, -est, -er, -s (S-V agreement)
8. Yun-Pi Yuan 8
Basic Concepts and Terms (3)
Affix:
Prefix e.g. Unhappy
Infix e.g. Absogoddamlutely
(see Nash 56)
Suffix e.g. happiness
11. Yun-Pi Yuan 11
II. Derivational Processes:
a method to get new words
1. Derivation: (or Derivational affixation, Affixation)
2. Compounding: combine two or more morphemes to form new words
3. Reduplication: full or partial repetition of a morpheme
4. Blending: parts of the words that are combined are deleted
5. Clipping: part of a word has been clipped off
6. Acronyms: abbreviate a longer term by taking the initial letters
7. Back formation: A word (usually a noun) is reduced to form another
word of a different type (usually a verb)
8. Extension of word formation rules : Part of a word is treated as a
morpheme though it’s not
9. Functional shift (Conversion): A change in the part of speech
10. Proper names Common words
11. Coining: Creating a completely new free morpheme
12. Onomatopoeia: words imitate sounds in nature
13. Borrowing: The taking over of words from other languages
12. 12
1. Derivation (1)
Derivation: derived by rules; it can also be
called derivational affixation or affixation.
A. different rules e.g. V + affix N
N + affix V
ADJ + affix V
N + affix ADJ
B. multiple combination
e.g. organizational
14. Make the appropriate derivation
The Internet grew out of a project ……. (origin) set up in
1969 by the Pentagon to help scientists to exchange ….......
(science) documents and so on, at a speed that is
almost ………. (instant). The Internet is now a
vast ……. (globe) network of networks with over 30 million
users. It ……… (able) them to consult huge databases,
transfer data, send and receive mail ………. (electronic). On
the World Wide Web, you can see the latest images of Mars,
go on a tour of a museum or an art ………. (exhibit). Of
course, not all of this is free and you have to pay a ………
(subscribe) fee to an Internet service ……… (provide) such as
Telkomsel or XL. However, there is a wide …….. (choose) of
newsgroups and these are all free of charge.
14
15. Yun-Pi Yuan 15
2. Compounding (1)
Compounding (compounds): combine two or
more free morphemes to form new words
N N N N
ADJ N N N N ADJ N V N
V fire engine green house jump suit
P wall paper blue bird kill joy
book case N
text book P N
after thought
out patient
16. Yun-Pi Yuan 16
2. Compounding (2)
N
ADJ ADJ ADJ
P
ADJ ADJ ADJ
N ADJ ADJ ADJ P ADJ
nation-wide red - hot over ripe
sky blue far - fetched in grown
pitch black out spoken
out standing
17. Yun-Pi Yuan 17
2. Compounding (3)
N
ADJ V V
P
V
V V V V
N V ADJ V P V V V
Spoon-feed white wash out live blow dry
Steam-roller dry clean underestimate breakdance
18. Yun-Pi Yuan 18
2. Compounding (4)
N N
N N N N
N N N N N N
dog food box stone age cave man
21. Yun-Pi Yuan 21
3.Reduplication
Reduplication: full or partial repetition of a free
morpheme; sometimes with variation
full partial with variation
so-so zigzag
bye-bye dilly-dally
hotch potch
hodge podge
mishmash
22. Yun-Pi Yuan 22
4. Blending
Blending (Blends): similar to compounding, but
parts of the free morphemes involved are lost
(usually 1st part of 1st word + end of 2nd word)
e.g. brunch (breakfast+ lunch)
smog (smoke+ fog)
motel (motor+ hotel)
newscast (news + broadcast)
perma-press (permanent press)
Reaganomics (? + ?)
fantabulous (? + ?)
23. Yun-Pi Yuan 23
5. Clipping
Clipping (Clipped forms): part of a free
morpheme is cut off (i.e., shortening a
polysyllabic word); often in casual speech
e.g. prof. auto (also in names)
phys-ed lab Liz
ad bike Kathy
poli-sci porn Ron
doc sub Lyn
24. 24
6. Acronyms (1)
Acronyms: abbreviate a longer term by
taking the initial letters
A. follow the pronunciation patterns of Eng
NATO (North Atlantic Treaty Organization)
TOEFL (Test of Eng. as a Foreign Language)
AIDS (Acquired Immune Deficiency Syndrome)
NASA (National Aeronautics & Space Administration)
25. 25
6. Acronyms (2)
B. If unpronounceable each letter is sounded
out separately
ATM (automatic teller machine)
I.Q. (intelligence quotient)
MRT (Mass Rapid Transit)
MTV (music television)
TVBS (television broadcasting service)
VCR (video cassette recorder)
26. 26
6. Acronyms (3)
C. Customary to sound out each letter even
if the combined initials can be
pronounced.
AIT (American Institute in Taiwan)
UCLA (Univ. of California at Los Angeles)
27. 27
7. Back formation
Back formation: A word (usually a noun) is
reduced to form another word of a different type
(usually a verb)
e.g. editor edit
donation donate
burglar burgle
zipper zip
television televise
babysitter babysit
28. 28
8. Extension of word formation rules
Extension of word formation rules: Part of a
word is treated as a morpheme though it’s not
burger (mar)athon (alco)holic
hamburger telethon workaholic
cheese burger danceathon
buffalo burger walkathon
fish burger
vege burger
tofu burger
29. 29
9. Functional shift (Conversion)
Functional shift (or conversion, category
change): A change in the part of speech
V N a guess, a must, a spy, a printout,
walk, run, laugh, touch
N V position, process, contact, notice,
party, fax, butter, bottle
(computer-related term) input, output, window
V ADJ see-thru, a stand-up, comedian
30. 30
10. Proper names common
words (1)
Proper names Common words
A. People
jacklumberjack, jack of all trades
tomtomcat, tomboy, peeping Tom
B. Real people
Earl of Sandwich, teddy bear, Marquis de
Sade
32. 32
11. Coining
Coining (Coinage): Creating a completely
new free morpheme, which is unrelated to
any existing morphemes; a rare thing
e.g. googol
pooch
Nylon
33. 33
12. Onomatopoeia
Onomatopoeia: words imitate sounds in nature
(or in technology)
e.g. A dog: bow wow or woof-woof,
A clock: tick-tock,
A rooster: cock-a-doodle-doo
A camera: click,
A duck: quack
A cat: meow
Ring of a bell: ding-dong,
A cow: moo,
A bee: buzz,
A snake: hiss,
34. 34
13. Borrowing
Borrowing (Borrowed words): The taking over
of words from other languages
A. Loan translation or calque (Yule 65)
hot dog
superman
B. Transliteration
cool
DINK
YUPPIE
35. Yun-Pi Yuan 35
III. Inflection (1)
I. Inflectional morphology: adds grammatical
functions (i.e., number, tense, aspect, gender,
case), so related to Syntax, but does not create
new words (so not related to the lexicon).
A. That (Those) planter(s) grows (grow) . . . .
B. in Eng.: inflections are all suffixes
C. examples in other languages: Yule 80
II. Basic word structure in English:
(DER) Base (DER) (INFL)
e.g. plant er s planters
un organ ize ed unorganized
36. Yun-Pi Yuan 36
III. Inflection (2)
I. Mandarin inflectional/functional “了”:
A. Perfective aspect: 怎麼碰了杯子也不喝?
B. Sentence final particle: 他胖起來了
把球拿走了
II. English examples:
A. able (adj. in “I’m able to do it”) lexical
B. -able (e.g., “enjoyable”) derivational
37. Yun-Pi Yuan 37
IV. Function Words
I. Free functional morphemes
• Definition: (Nash 64)
II. A list of function words in Eng: (Nash 65)
A. More than inflections
B. Eng. And Chinese tend to isolate
grammatical functions out into free
morphemes
C. Some other langs. tend to use bound
morphemes; e.g., Russian, Swahili
38. Yun-Pi Yuan 38
V. Problems in Morphological
Description
Bound stem
receive, unkempt, inept; cranberry? Huckleberry?
Unidentifiable or inseparable elements
• Due to historical influences and borrowing:
A. Plural form:
sheep sheep; man men
B. Past tense:
read read; go went
C. Noun ADJ:
law (old Norse into old Eng) legal (Latin)
mouth (old Eng.) oral (Latin)
39. Yun-Pi Yuan 39
VI. Interaction Between
Morphology and Phonology (1)
A. Past tense in English (inflection)
past tense morpheme /d/=allomorphs {d, t, Id}
1. Verbs ends in +voiced /d/
• e.g. agreed, dragged
2. Verbs ends in -voiced /t/
• e.g. worked, missed
3. Verbs ends in alveolar stop /Id/
• e.g., loaded, estimated
40. Yun-Pi Yuan 40
VI. Interaction Between
Morphology and Phonology (2)
B. Plural form (inflection)
plural morpheme /z/=allomorphs {z, s, Iz}
1. Noun ends in +voiced /z/
e.g. flags, games
2. Noun ends in -voiced /s/
e.g. maps, banks
3. ends in +sibilant /Iz/
e.g. glasses, watches
C. Negative (Nash 51)
/In/ = {n, N }
41. Yun-Pi Yuan 41
VI. Interaction Between
Morphology and Phonology (3)
Morphophonemic Rules:
The rules that determine the pronunciation
of the regular past tense, plural morphemes,
and negative prefix are called
morphophonemic rules because
morphology adds the suffix to the root, and
the phonology controls the pronunciation
of the affix (morpheme).
42. Yun-Pi Yuan 42
VII. Collocations
A. Definition: combinations of words stored as
whole units in the brain, like one big word; So,
unnecessary to be put together using syntax—
can be called up for use all at once.
B. Examples:
and (fork, knife, bread, pepper, salt, butter)
harm; business; a mistake
How’re you? How do you do? Nice to meet you.
I’m so glad you could bring Pamela.
* That Pamela could be brought by you makes me so glad.
* That you could bring Pamela makes me so glad.