Where does “surffaaminen” come from?

surffaaminen (Finnish) comes from Finnish surffata, from Finnish -ätä, from Finnish -tä, from Proto-Finnic -ta, from Proto-Uralic -tä — from.

Ancestry of “surffaaminen”, step by step

StepLanguageWordMeaning
1FinnishsurffataTo surf
2Finnish-ätäFront vowel variant of -ata
3Finnish-täFront vowel variant of -ta
4Proto-Finnic-taPartitive ending
5Proto-Uralic-täfrom
Every word from Proto-Uralic -tä →Every word from Finnish -ätä →Every word from Finnish -tä →