He invented over 1700 of our common words by changing nouns into verbs, changing verbs into adjectives, connecting words never before used together, adding prefixes and suffixes, and devising words wholly original. ...
Why did Shakespeare make up words?
Primarily by adding prefixes and suffixes to known words; this way, audiences would be able to generally comprehend what he was getting at, since they would be inherently familiar with both the root words and their additions.
Did Shakespeare invent the word kissing?
Shakespeare is routinely credited with contributing “at least 1,700 words” to the English language, including words as seemingly common as bedroom, alligator, eyeball, lonely and kissing.