undulate

undulate · verb¹

1. Latin · derived fromunda“wave”
2. New Latin · borrowed fromundulātus
3. English todayundulate

First attested in 1664; borrowed from New Latin undulātus, the perfect passive participle of undulō (see -ate (verb-forming suffix)), from an unattested *undula (“small wave”), diminutive of Latin unda (“wave”).

undulate · adjective²

1. Late Latin · borrowed fromundulātus“undulated”
2. English todayundulate

Borrowed from Late Latin undulātus (“undulated”), see -ate (adjective-forming suffix).

Words from the same roots