Where does “irregularise” come from?

irregularise (English) comes from English irregular, from Old French irreguler, from Latin irrēgulāris, from Latin rēgulāris, from Latin rēgula, from Latin -ula, from Proto-Indo-European -tlom, from Proto-Indo-European -trom — Derives agent nouns from verbs, denoting someone...

Ancestry of “irregularise”, step by step

StepLanguageWordMeaning
1Englishirregularnonstandard; not conforming to rules or...
2Old Frenchirreguler
3Latinirrēgulārisirregular, unusual
4Latinrēgulārisductile (able to be formed into a bar)
5Latinrēgularule, bar
6Latin-ularegō + API → rēgula; tegō + API → tēgula;...
7Proto-Indo-European-tlomAlternative form of *-trom
8Proto-Indo-European-tromForms nouns denoting a tool or instrument
9Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...
Every word from Proto-Indo-European -tḗr
irregularise — Etymology, Origin & Word History | Etymology Explorer