- serrate (adj.)
- "notched," 1660s, from Latin serratus "sawlike, notched like a saw," from serra "a saw," of unknown origin. Related: Serrated; serrating.
- serrated (adj.)
- 1703, past participle adjective based on Latin serratus (see serrate (adj.)). Serrating "sawing" attested from 1590s, but serrate as a transitive verb not attested before 1750 according to OED.
- serration (n.)
- "condition of being serrated," 1808, noun of state from serrate (adj.).