Where does “labairt” come from?

labairt (Old Irish) comes from Old Irish labraithir, from Old Irish -aid, from Proto-Celtic -āti, from Proto-Indo-European -h₂ti — Forms factitive verbs from adjective stems.

Ancestry of “labairt”, step by step

StepLanguageWordMeaning
1Old Irishlabraithirto speak, to say; For quotations using this term,...
2Old Irish-aidforms [[AP:Old Irish class A I present verbs
3Proto-Celtic-ātiForms verbs from nouns and adjectives
4Proto-Indo-European-h₂tiForms factitive verbs from adjective stems

Words derived from “labairt

Every word from Proto-Indo-European -h₂tiEvery word from Old Irish -aidEvery word from Old Irish labraithir