Where does “Josiane” come from?

Josiane (English) comes from French Josiane, from French -ane, from Middle French -ané, from Latin -āneus, from Latin -eus, from Proto-Italic *-eos — Forms adjectives indicating being formed out of a material.

Ancestry of “Josiane”, step by step

StepLanguageWordMeaning
1FrenchJosiane—
2French-aneane
3Middle French-anéaneous
4Latin-āneusforming adjectives Of or pertaining to; -aneous
5Latin-eusargentum + API → argenteus; ferrum + API →...
6Proto-Italic*-eosForms adjectives indicating being formed out of a material
Every word from Proto-Italic *-eos →Every word from Latin -eus →Every word from Latin -āneus →