Where does “päänalus” come from?

päänalus (Finnish) comes from Finnish alus, from Finnish ala, from Proto-Finnic ala, from Proto-Uralic ëla — below.

Ancestry of “päänalus”, step by step

päänalus traces back through two separate lines of ancestry.

via Finnish alus

StepLanguageWordMeaning
1Finnishalusvessel, craft, ship; underlay, base; subject
2Finnishalaarea, field, domain; field, discipline; industry,...
3Proto-Finnicalalower; under
4Proto-Uralicëlabelow

via Finnish pää

StepLanguageWordMeaning
1Finnishpäähead; end, tip
2Proto-Finnicpäähead
3Proto-Uralicpäŋehead
Every word from Proto-Uralic ëlaEvery word from Proto-Finnic alaEvery word from Finnish ala