Where does “aghast” come from?

Aghast comes from Middle English agast, derived from Old English a- prefixed to Proto-Germanic gaistijaną, ultimately from Proto-Indo-European úd meaning "out."

aghast (English): Terrified; struck with amazement; showing signs...

Definitions

  1. Terrified; struck with amazement; showing signs...

Ancestry of “aghast”, step by step

StepLanguageWordMeaning
1Middle Englishagast
2Middle Englishagastento terrify
3Middle Englisha-up, out, away; of; on, in
4Old Englishā-a-; away, out
5Old Englishar-
6Proto-West Germanicuʀ-out, over; off, away
7Proto-Germanicuz-up, out
8Proto-Indo-Europeanuss-
9Proto-Indo-Europeanuds-up, out
10Proto-Indo-Europeanúdout, outward

Words derived from “aghast

Every word from Proto-Indo-European údEvery word from Proto-Indo-European uds-Every word from Proto-Indo-European uss-
aghast — Etymology, Origin & Word History | Etymology Explorer