Where does “eochairléacht” come from?

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

eochairléacht (Irish): keynote lecture

Definitions

  1. keynote lecture

Ancestry of “eochairléacht”, step by step

eochairléacht traces back through two separate lines of ancestry.

via Irish léacht

StepLanguageWordMeaning
1Irishléachtlecture, reading
2Irishachtdecree, enactment; compact; condition
3Middle Irishacht—
4Latināctusmade, done, having been done
5Latinagōto act, to behave
6Proto-Italicagōdrive; push, impel; do, act
7Proto-Indo-Europeanh₂éǵetito be driving
8Proto-Indo-Europeanh₂eǵ-to drive

via Irish eochair

StepLanguageWordMeaning
1Irisheochairkey; key; clef
2Scottish Gaeliciuchairkey; clef
3Proto-Celtic*ikūr—
4Proto-Indo-Europeanyókʷr̥liver
5Proto-Indo-European-r̥Derives nouns from roots, frequently mass nouns
Every word from Proto-Indo-European h₂eǵ- →Every word from Proto-Indo-European h₂éǵeti →Every word from Proto-Italic agō →