horripilate

The story

1. Proto-Indo-European · derived from*ǵʰers-“to bristle”
2. Late Latin · derived fromhorripilātus
3. English todayhorripilate

From Late Latin horripilātus, perfect passive participle of horripilō (“(of hairs) to bristle”) (see -ate (verb-forming suffix)), from horreō (“to bristle, shiver, dread”) + pilus (“hair”) + -ō (first conjugation verb-forming suffix), ultimately from Proto-Indo-European *ǵʰers- (“to bristle”).

Words from the same roots

First known use, by meaning

• from 1620s To bristle in fear or horror; to have goose bumps or goose pimples.