neologism

Etymology

From French néologisme, from Ancient Greek νέος (néos, “new”) + λόγος (lógos, “word”).

noun

1. (linguistics, lexicography, countable) A word or phrase which has recently been coined; a new word or phrase, or an existing one which has gained a new meaning.
2. (linguistics, uncountable) The act or instance of coining, or uttering a new word.
3. (psychiatry) The newly coined, meaningless words or phrases of someone with a psychosis, usually schizophrenia.
4. (theology, historical) Synonym of neology.