Where does “pidentäminen” come from?

pidentäminen (Finnish) comes from Finnish pidentää, from Finnish taa, from Finnish taka, from Proto-Finnic taka, from Proto-Uralic taka — a place behind.

Ancestry of “pidentäminen”, step by step

StepLanguageWordMeaning
1FinnishpidentääTo lengthen; To elongate; To prolong
2FinnishtaaOf movement, behind; a shorter form of taakse
3Finnishtakathe backside; In the expression "omasta takaa"...
4Proto-Finnictakaback, a place behind
5Proto-Uralictakaa place behind
Every word from Proto-Uralic takaEvery word from Proto-Finnic takaEvery word from Finnish taka