Where does “maanpeittokasvi” come from?

maanpeittokasvi (Finnish) comes from Finnish maanpeitto, from Finnish peitto, from Finnish peittää, from Proto-Finnic peittädäk, from Proto-Finnic pej-, from Proto-Uralic *pälkä — thumb.

Ancestry of “maanpeittokasvi”, step by step

maanpeittokasvi traces back through two separate lines of ancestry.

via Finnish maanpeitto

StepLanguageWordMeaning
1Finnishmaanpeitto—
2Finnishpeittoblanket; cover, coverage
3Finnishpeittääto cover
4Proto-Finnicpeittädäkto cover; to hide, to conceal
5Proto-Finnicpej-—
6Proto-Uralic*pälkäthumb

via Finnish kasvi

StepLanguageWordMeaning
1Finnishkasviplant
2Finnishkasvaato grow
3Proto-Finnickasvadakto grow
4Proto-Indo-Europeanh₂ewks-—
Every word from Proto-Uralic *pälkä →Every word from Proto-Finnic pej- →Every word from Proto-Finnic peittädäk →