Where does “pitkäjännitteinen” come from?

pitkäjännitteinen (Finnish) comes from Finnish jännite, from Finnish jännittää, from Finnish -ittaa, from Finnish -ttää, from Proto-Finnic -ttadak, from Proto-Uralic -kta-.

Ancestry of “pitkäjännitteinen”, step by step

pitkäjännitteinen traces back through two separate lines of ancestry.

via Finnish jännite

StepLanguageWordMeaning
1Finnishjännitevoltage; tension
2Finnishjännittääto tense; to tension; to flex
3Finnish-ittaaVariant of -ttaa used with some bisyllabic stems
4Finnish-ttääFront vowel variant of -ttaa
5Proto-Finnic-ttadakCreates causative verbs from regular verbs,...
6Proto-Uralic-kta-

via Finnish pitkä

StepLanguageWordMeaning
1Finnishpitkälong; tall; Short for pitkä kiekko
2Proto-Finnicpitkälong; tall
3Proto-Uralicpidetall
4Finnishpitääto hold, grasp, grip; to keep, take; to like, be...
5Proto-Finnicpitädäkto hold, to grasp; to keep
6Proto-Finno-Ugricpitä-

Words derived from “pitkäjännitteinen

Every word from Proto-Uralic -kta-Every word from Finnish -ttääEvery word from Finnish -ittaa