Where does “lusikoiminen” come from?

lusikoiminen (Finnish) comes from Finnish lusikoida, from Finnish lusikka, from Old East Slavic лъжька, from Proto-Slavic lyžьka, from Proto-Slavic -ьka, from Proto-Balto-Slavic -ikaʔ, from Proto-Indo-European -ikeh₂.

Ancestry of “lusikoiminen”, step by step

StepLanguageWordMeaning
1FinnishlusikoidaTo eat using a spoon
2Finnishlusikkaspoon
3Old East Slavicлъжькаspoon
4Proto-Slaviclyžьkaspoon
5Proto-Slavic-ьka—
6Proto-Balto-Slavic-ikaʔ—
7Proto-Indo-European-ikeh₂—
Every word from Proto-Indo-European -ikeh₂ →Every word from Proto-Slavic -ьka →Every word from Proto-Slavic lyžьka →