Where does “tubaiste” come from?

tubaiste (Middle Irish) comes from Middle English tempest, from Old French tempeste, from Latin tempesta, from Latin tempestās, from Latin -tās, from Proto-Indo-European -teh₂ts, from Proto-Indo-European -teh₂, from Proto-Indo-European -tós — Creates verbal adjectives from verb stems.

Ancestry of “tubaiste”, step by step

StepLanguageWordMeaning
1Middle Englishtempesttempest storm
2Old Frenchtempestestorm; tempest
3Latintempestatime, season
4Latintempestāsportion, point, or space of time; time, season, period
5Latin-tāsty, -dom, -hood, -ness, -ship
6Proto-Indo-European-teh₂tsUsed to form nouns representing state of being
7Proto-Indo-European-teh₂Used to form nouns representing state of being
8Proto-Indo-European-tósCreates verbal adjectives from verb stems

Words derived from “tubaiste

Every word from Proto-Indo-European -tósEvery word from Latin -tāsEvery word from Latin tempestās