Where does “pohjalasti” come from?

pohjalasti (Finnish) comes from Finnish lästi, from Swedish läst, from Middle Low German last, from Old Saxon hladan, from Proto-West Germanic hlaþan, from Proto-Germanic hlaþaną, from Proto-Indo-European kleh₂-, from Proto-Indo-European kelh₂- — to beat; to break.

Ancestry of “pohjalasti”, step by step

pohjalasti traces back through two separate lines of ancestry.

via Finnish lästi

StepLanguageWordMeaning
1Finnishlästilast
2Swedishlästread; a shoe last; whence the adjective
3Middle Low Germanlast
4Old Saxonhladanto load, to lade
5Proto-West Germanichlaþanto load
6Proto-Germanichlaþanąto load
7Proto-Indo-Europeankleh₂-to put; to lay out
8Proto-Indo-Europeankelh₂-to beat; to break

via Finnish pohja

StepLanguageWordMeaning
1Finnishpohjabottom; bed; fundament
2Proto-Finnicpohjabottom; base, foundation; north
3Proto-Finno-Permicpošja
Every word from Proto-Indo-European kelh₂-Every word from Proto-Indo-European kleh₂-Every word from Proto-Germanic hlaþaną