Where does “perusoletus” come from?

perusoletus (Finnish) comes from Finnish perus-, from Finnish perus, from Finnish perä, from Proto-Finno-Ugric perä, from Proto-Uralic *perä — hindquarters, back part of something.

perusoletus (Finnish): principle; fundamental assumption, basic...

Definitions

principle; fundamental assumption, basic...

Ancestry of “perusoletus”, step by step

Step	Language	Word	Meaning
1	Finnish	perus-	basic, elemental, fundamental, rudimentary,...
2	Finnish	perus	foundation; usual, normal, basic
3	Finnish	perä	rear, back, tail end; stern, aft; far end or side...
4	Proto-Finno-Ugric	perä	—
5	Proto-Uralic	*perä	hindquarters, back part of something

Every word from Proto-Uralic *perä →Every word from Proto-Finno-Ugric perä →Every word from Finnish perä →