Where does “Францыя” come from?

Францыя (Belarusian) comes from Polish Francja, from French France, from Middle French France, from Old French France, from Latin francia, from Latin -ia, from Latin -ius, from Proto-Italic -jōs — Creates adjectives from noun or verb stems.

Ancestry of “Францыя”, step by step

StepLanguageWordMeaning
1PolishFrancja
2FrenchFrance
3Middle FrenchFrance
4Old FrenchFrance
5Latinfrancianominative plural of francium; accusative plural...
6Latin-iaUsed to form a feminine abstract noun, usually...
7Latin-iusforming adjectives from nouns; nominative neuter...
8Proto-Italic-jōsForms comparative adjectives
9Proto-Indo-European-yósCreates adjectives from noun or verb stems
Every word from Proto-Indo-European -yósEvery word from Latin -iaEvery word from Latin -ius