Where does “acht” come from?

acht (Middle Irish) comes from Latin āctus, from Latin agō, from Proto-Italic agō, from Proto-Indo-European h₂éǵeti, from Proto-Indo-European h₂eǵ- — to drive.

Ancestry of “acht”, step by step

StepLanguageWordMeaning
1Latināctusmade, done, having been done
2Latinagōto act, to behave
3Proto-Italicagōdrive; push, impel; do, act
4Proto-Indo-Europeanh₂éǵetito be driving
5Proto-Indo-Europeanh₂eǵ-to drive

Words derived from “acht

Every word from Proto-Indo-European h₂eǵ-Every word from Proto-Indo-European h₂éǵetiEvery word from Proto-Italic agō