Where does “fiat” come from?

Fiat comes from Latin fiat, third-person singular subjunctive of fio, derived from Proto-Italic fuiō, which traces to Proto-Indo-European bʰuH-, a root meaning "to become" or "to be."

fiat (English): An arbitrary or authoritative command or order to...

Definitions

  1. An arbitrary or authoritative command or order to...

Ancestry of “fiat”, step by step

StepLanguageWordMeaning
1Latinfiatthird-person singular present active subjunctive...
2LatinfioI become, am made; I happen; I take place
3Proto-Italicfuiōto become
4Proto-Indo-EuropeanbʰuH-to become, grow, appear
Every word from Proto-Indo-European bʰuH-Every word from Proto-Italic fuiōEvery word from Latin fio