nauseate

From earlier nauseat, from Latin nauseātus (“nauseated”), perfect past participle of nauseō (“to feel sea sick, nauseate”) (see -ate (verb-forming suffix, of participial origin)), from nausea, from Ancient Greek ναυσία (nausía), from ναῦς (naûs), from Proto-Indo-European *(s)neh₂-. By surface analysis, nausea + -ate (verb-forming suffix).