Blending is a word formation process where parts of two or more words are combined to create a new word. The meaning of a blended word is often a combination of the original words. Examples include smog from smoke and fog, motel from motor and hotel, and brunch from breakfast and lunch.
Backformation is a type of word formation where a word is reduced to form a new word of a different type. For example, the noun television led to the verb televise being created from it. Other examples include donate from donation and edit from editor.