Where does “päätepuskuri” come from?

päätepuskuri (Finnish) comes from Finnish pääte, from Finnish päättää, from Finnish pää, from Proto-Finnic pää, from Proto-Uralic päŋe — head.

Ancestry of “päätepuskuri”, step by step

päätepuskuri traces back through two separate lines of ancestry.

via Finnish pääte

StepLanguageWordMeaning
1Finnishpääteend, ending; final, terminal, end; terminal
2Finnishpäättääto end, conclude, terminate, finish, bring to a close
3Finnishpäähead; end, tip
4Proto-Finnicpäähead
5Proto-Uralicpäŋehead

via Finnish puskuri

StepLanguageWordMeaning
1Finnishpuskuribumper; anything that rams; buffer
2Finnishpuskeato ram, to push; to gore; to header
3Proto-Finnicpuskedakto ram; to gore
4Proto-Finno-Ugricpuske-—
Every word from Proto-Uralic päŋe →Every word from Proto-Finnic pää →Every word from Finnish pää →