Where does “regula” come from?

regula (Old High German) comes from Latin rēgula, from Latin -ula, from Proto-Indo-European -tlom, from Proto-Indo-European -trom, from Proto-Indo-European -tḗr — Derives agent nouns from verbs, denoting someone...

Ancestry of “regula”, step by step

StepLanguageWordMeaning
1Latinrēgularule, bar
2Latin-ularegō + API → rēgula; tegō + API → tēgula;...
3Proto-Indo-European-tlomAlternative form of *-trom
4Proto-Indo-European-tromForms nouns denoting a tool or instrument
5Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

Words derived from “regula”

Every word from Proto-Indo-European -tḗr →Every word from Latin -ula →Every word from Latin rēgula →