Where does “June” come from?

June (Middle English) comes from Middle English juyng, from Old French juin, from Latin iūnius, from Latin -ius, from Proto-Italic -jōs, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

Ancestry of “June”, step by step

June traces back through two separate lines of ancestry.

via Middle English juyng

StepLanguageWordMeaning
1Middle Englishjuyng
2Old FrenchjuinJune
3LatiniūniusOf the Junian gens
4Latin-iusforming adjectives from nouns; nominative neuter...
5Proto-Italic-jōsForms comparative adjectives
6Proto-Indo-European-yósCreates adjectives from noun or verb stems

via Middle English Juyn

StepLanguageWordMeaning
1Middle EnglishJuyn
Every word from Proto-Indo-European -yósEvery word from Latin -iusEvery word from Proto-Italic -jōs