Where does “ruoansulatin” come from?

ruoansulatin (Finnish) comes from Finnish sulatin, from Finnish sulattaa, from Finnish -ttaa, from Proto-Finnic -ttadak, from Proto-Uralic -kta-.

Ancestry of “ruoansulatin”, step by step

ruoansulatin traces back through two separate lines of ancestry.

via Finnish sulatin

StepLanguageWordMeaning
1Finnishsulatinmelter, liquidizer tool
2Finnishsulattaato melt; to smelt; to thaw, defrost
3Finnish-ttaaForms causative verbs. May be applied to verbs...
4Proto-Finnic-ttadakCreates causative verbs from regular verbs,...
5Proto-Uralic-kta-—

via Finnish ruoka

StepLanguageWordMeaning
1Finnishruokafood; meal
2Proto-Finnicrookafood; meal
3Proto-Germanicrōkōcare, attention
Every word from Proto-Uralic -kta- →Every word from Finnish -ttaa →Every word from Proto-Finnic -ttadak →