Etymology Explorer › Old French

Where does “pinnacle” come from?

pinnacle (Old French) comes from Latin pinnāculum, from Latin Pinna, from Latin penna, from Proto-Italic petnā, from Proto-Indo-European péth₂r̥, from Proto-Indo-European peth₂- — to spread out; to fly.

Ancestry of “pinnacle”, step by step

StepLanguageWordMeaning
1Latinpinnāculum—
2LatinPinna—
3Latinpennawing; feather, especially a flight-feather;...
4Proto-Italicpetnāfeather; wing
5Proto-Indo-Europeanpéth₂r̥wing; feather
6Proto-Indo-Europeanpeth₂-to spread out; to fly

Words derived from “pinnacle”

  • pinnacle
Every word from Proto-Indo-European peth₂- →