Neologism Share definition Flag a word that means "new word". it comes from the Latin roots "neo"(meaning "new") and "log"(meaning "word"). the "ism" os not that important. List of Neologisms: fucktard haterade floetry fugly etc... all the names of pokemon are neologisms Neologism by this website is ruined February 4, 2007 Get the Neologism mug.