Where does “янва́рь” come from?

янва́рь (Russian) comes from Latin iānuārius, from Latin -ārius, from Proto-Italic *-āzios.

Ancestry of “янва́рь”, step by step

Step	Language	Word	Meaning
1	Latin	iānuārius	—
2	Latin	-ārius	—
3	Proto-Italic	*-āzios	—

Words derived from “янва́рь”

Every word from Proto-Italic *-āzios →

янва́рь — Etymology, Origin & Word History | Etymology Explorer