Where does “invernum” come from?

invernum (Vulgar Latin) comes from Latin hibernum, from Latin hibernus, from Proto-Italic heimrinos, from Proto-Indo-European ǵʰey-m-r-ino-s, from Proto-Indo-European ǵʰey- — winter.

Ancestry of “invernum”, step by step

StepLanguageWordMeaning
1Latinhibernumwinter; winter quarters; nominative neuter...
2Latinhibernuswintry; of or pertaining to winter; suitable for...
3Proto-Italicheimrinos
4Proto-Indo-Europeanǵʰey-m-r-ino-s
5Proto-Indo-Europeanǵʰey-winter

Words derived from “invernum

Every word from Proto-Indo-European ǵʰey-Every word from Proto-Indo-European ǵʰey-m-r-ino-sEvery word from Proto-Italic heimrinos