Where does “-häntäinen” come from?

-häntäinen (Finnish) comes from Finnish häntä, from Proto-Finnic häntä, from Proto-Uralic čänčä.

Ancestry of “-häntäinen”, step by step

StepLanguageWordMeaning
1Finnishhäntäa narrow tail; ogonek; Partitive form of hän
2Proto-Finnichäntätail
3Proto-Uralicčänčä—
Every word from Proto-Uralic čänčä →Every word from Proto-Finnic häntä →Every word from Finnish häntä →