Where does “-isin” come from?

-isin (Finnish) comes from Hungarian isi, from Hungarian -i, from Hungarian -é, from Albanian -ë, from Proto-West Germanic -jā, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

-isin (Finnish): The case suffix denoting temporal distributive;...

Definitions

  1. The case suffix denoting temporal distributive;...

Ancestry of “-isin”, step by step

-isin traces back through two separate lines of ancestry.

via Hungarian isi

StepLanguageWordMeaning
1Hungarianisischool
2Hungarian-iAdded to a proper noun, noun or postposition to...
3HungarianUsed to form the lative, expressing the direction...
4Albanian-ing, -ion
5Proto-West Germanic-jā
6Proto-Indo-European-íh₂
7Proto-Indo-European-h₂Creates collective nouns, which refer to groups...

via Old Irish sín

StepLanguageWordMeaning
1Old Irishsínweather
2Proto-Celticsindosthis
3Proto-Indo-Europeansḗmone
4Proto-Indo-Europeansem-together, one

Words derived from “-isin

Every word from Proto-Indo-European -h₂
-isin — Etymology, Origin & Word History | Etymology Explorer