ne·ol·o·gism 
(nē-ŏlə-jĭz′əm, nē′ō-lō-)
(nē-ŏlə-jĭz′əm, nē′ō-lō-)n.
1. A new word, expression, or usage.
2. The creation or use of new words or senses.
3. Psychology
a. The invention of new words regarded as a symptom of certain psychotic disorders, such as schizophrenia.
b. A word so invented.
4. Theology A new doctrine or a new interpretation of scripture.
ne·olo·gist n.
ne·ol′o·gistic, ne·ol′o·gisti·cal adj.
Usage Note: The traditional pronunciation of neologism is accented on the second syllable (nē-ŏlə-jĭz′əm). In our 2015 survey, this is the pronunciation preferred by 72 percent of the Usage Panel. A newer variant pronunciation accented on the third syllable (nē′ō-lōjĭz′əm) is preferred by 28 percent of the Panel; however, only half of the Panel finds it acceptable.