1) English and German are closely related languages that originated from the same West Germanic language branch. 2) However, between the 3rd-5th centuries CE, German underwent a consonant shift that changed p sounds to f, t sounds to s, and d sounds to t. 3) This consonant shift is why some similar English and German words like "ship/Schiff" and "door/Tür" look more different, while others like "hand/Hand" remain nearly identical. Understanding this shift can help in learning German vocabulary.