Where does “piirtomitta” come from?

piirtomitta (Finnish) comes from Finnish piirto, from Old High German Berhthold, from Proto-Germanic *Berhtawald, from Proto-Germanic *berht, from Proto-Germanic berhtaz, from Proto-Germanic hrabnaz, from Proto-Indo-European ḱorh₂-, from Proto-Indo-European ḱer- — army.

Ancestry of “piirtomitta”, step by step

piirtomitta traces back through two separate lines of ancestry.

via Finnish piirto

StepLanguageWordMeaning
1Finnishpiirtostroke; the core of a pirn in a weaving shuttle
2Old High GermanBerhthold
3Proto-Germanic*Berhtawald
4Proto-Germanic*berht
5Proto-Germanicberhtazbright, shining
6Proto-Germanichrabnazraven
7Proto-Indo-Europeanḱorh₂-
8Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
9Proto-Indo-Europeankr̥-to turn, to bend
10Proto-Indo-Europeanker-army

via Finnish mitta

StepLanguageWordMeaning
1Finnishmittameasure; length, measure
2Proto-Finnicmittameasure
Every word from Proto-Indo-European ker-Every word from Proto-Indo-European kr̥-Every word from Proto-Indo-European ḱer-