Where does “latvakasvain” come from?

latvakasvain (Finnish) comes from Finnish kasvain, from Finnish kasvaa, from Proto-Finnic kasvadak, from Proto-Indo-European h₂ewks-.

Ancestry of “latvakasvain”, step by step

latvakasvain traces back through two separate lines of ancestry.

via Finnish kasvain

StepLanguageWordMeaning
1Finnishkasvaintumour/tumor
2Finnishkasvaato grow
3Proto-Finnickasvadakto grow
4Proto-Indo-Europeanh₂ewks-—

via Finnish latva

StepLanguageWordMeaning
1Finnishlatvatreetop; headwaters
2Proto-Finniclatvatreetop
Every word from Proto-Indo-European h₂ewks- →Every word from Proto-Finnic kasvadak →Every word from Finnish kasvaa →