Where does “seinänvierus” come from?

seinänvierus (Finnish) comes from Finnish vierus, from Finnish vieri, from Proto-Finnic veeri, from Proto-Finno-Permic wäre.

Ancestry of “seinänvierus”, step by step

seinänvierus traces back through two separate lines of ancestry.

via Finnish vierus

StepLanguageWordMeaning
1Finnishvierus—
2Finnishvieriside; Third-person singular indicative past form...
3Proto-Finnicveeriside, flank; edge
4Proto-Finno-Permicwäre—

via Finnish seinä

StepLanguageWordMeaning
1Finnishseinäwall; mains; Essive singular form of sei
2Proto-Finnicsainawall
Every word from Proto-Finno-Permic wäre →Every word from Proto-Finnic veeri →Every word from Finnish vieri →