Where does “opintoaste” come from?

opintoaste (Finnish) comes from Finnish opinnot, from Finnish -ntö, from Finnish -mö, from Finnish -i, from Proto-Uralic -j — oblique plural.

Ancestry of “opintoaste”, step by step

opintoaste traces back through two separate lines of ancestry.

via Finnish opinnot

StepLanguageWordMeaning
1Finnishopinnotstudies
2Finnish-ntö
3Finnish-möFront vowel variant of -mo
4Finnish-iA nominal suffix used in eg. ukko → ukki; Used...
5Proto-Uralic-joblique plural

via Finnish aste

StepLanguageWordMeaning
1Finnishastegrade; degree; degree, degree Celsius
2Finnishastuato step (on), tread (on), pace, stride
3Proto-Finnicastudakto step, to take steps
Every word from Proto-Uralic -jEvery word from Finnish -iEvery word from Finnish -ntö