Where does “nurinperin” come from?

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

Ancestry of “nurinperin”, step by step

nurinperin traces back through two separate lines of ancestry.

via Finnish perä

StepLanguageWordMeaning
1Finnishperärear, back, tail end; stern, aft; far end or side...
2Proto-Finno-Ugricperä—
3Proto-Uralic*perähindquarters, back part of something

via Finnish nurin

StepLanguageWordMeaning
1Finnishnurinover, inside out, upside down wrong way round or not standing up
2Finnishnurjawrong; adverse
3Proto-Finnicnurjawrong, bad, poor
Every word from Proto-Uralic *perä →Every word from Proto-Finno-Ugric perä →Every word from Finnish perä →