Where does “Ragonese” come from?

Ragonese (English) comes from Italian Ragonese, from English Aragonese, from English -ese, from Middle English -eys, from Old French -eis, from Late Latin -iscus.

Ancestry of “Ragonese”, step by step

Step	Language	Word	Meaning
1	Italian	Ragonese	—
2	English	Aragonese	Of, from, or pertaining to Aragon, the Aragonese...
3	English	-ese	Used to form adjectives and nouns describing...
4	Middle English	-eys	Alternative form of -esse
5	Old French	-eis	used to form nationalities; used to form names of...
6	Late Latin	-iscus	—

Every word from Late Latin -iscus →