neologous

And give the word neologism to our language, as a root, and it should give us its fellow substantives, neology, neologist, neologization; its adjectives, neologous, neological, neologistical; its verb, neologize; and adverb neologically.

Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson, Volume 4 Thomas Jefferson 1784

And give the word neologism to our language, as a root, and it should give us it's fellow substantives, neology, neologist, neologisation; it's adjectives neologous, neological, neologistical, it's verb neologise, and adverb neologically.

Letters 1760