Where does “kustavilaisuus” come from?

kustavilaisuus (Finnish) comes from Finnish kustavilainen, from Swedish gustaviansk, from Swedish -sk, from Old Norse -skr, from Proto-Germanic -iskaz, from Proto-Indo-European -iskos — Characteristic of, typical of, pertaining to.

Ancestry of “kustavilaisuus”, step by step

StepLanguageWordMeaning
1FinnishkustavilainenAlso capitalized; of or pertaining to a period in...
2SwedishgustavianskGustavian
3Swedish-skAlternative form of -isk; -ish
4Old Norse-skr-ish
5Proto-Germanic-iskazForms adjectives from nouns with the sense of...
6Proto-Indo-European-iskosCharacteristic of, typical of, pertaining to
Every word from Proto-Indo-European -iskosEvery word from Proto-Germanic -iskazEvery word from Swedish -sk