Where does “rugidus” come from?

rugidus (Latin) comes from Italian ruga, from Latin rūga, from Proto-Indo-European krewp-, from Proto-Indo-European krew- — to fall, collapse; scab; to fall, break, bruise.

Ancestry of “rugidus”, step by step

StepLanguageWordMeaning
1Italianrugawrinkle, line
2Latinrūgaa crease in the face, wrinkle
3Proto-Indo-Europeankrewp-scab, crust; to become encrusted
4Proto-Indo-Europeankrew-to fall, collapse; scab; to fall, break, bruise

Words derived from “rugidus

Every word from Proto-Indo-European krew-Every word from Proto-Indo-European krewp-Every word from Latin rūga
rugidus — Etymology, Origin & Word History | Etymology Explorer