neologism

A new word, expression, or usage.

The creation or use of new words or senses.

The invention of new words regarded as a symptom of certain psychotic disorders, such as schizophrenia.

A word so invented.

A new doctrine or a new interpretation of scripture.

A new word or phrase, or a new use of a word.

The use of new words, or of old words in new senses.

A new doctrine.

The introduction of new words, or the use of old words in a new sense.