Where does “harmaantuminen” come from?

harmaantuminen (Finnish) comes from Finnish harmaantua, from Finnish harmaa, from Proto-Finnic harmaga, from Proto-Baltic śirˀmas, from Proto-Indo-European ḱr̥-m-os, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

Ancestry of “harmaantuminen”, step by step

StepLanguageWordMeaning
1FinnishharmaantuaTo grey
2Finnishharmaagrey, gray; grey, gray, dreary, gloomy; The...
3Proto-Finnicharmagagrey, gray
4Proto-Balticśirˀmas
5Proto-Indo-Europeanḱr̥-m-os
6Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
7Proto-Indo-Europeankr̥-to turn, to bend
8Proto-Indo-Europeanker-army
Every word from Proto-Indo-European ker-Every word from Proto-Indo-European kr̥-Every word from Proto-Indo-European ḱer-