Where does “ruutuhapero” come from?

ruutuhapero (Finnish) comes from Finnish ruutu, from Swedish ruta, from Middle Low German rūte, from Old High German rūta, from Latin rūta, from Ancient Greek ῥυτή — rue.

ruutuhapero (Finnish): A brittlegill, "Russula virescens"

Definitions

A brittlegill, "Russula virescens"

Ancestry of “ruutuhapero”, step by step

ruutuhapero traces back through two separate lines of ancestry.

via Finnish ruutu

Step	Language	Word	Meaning
1	Finnish	ruutu	square; rectangle; box
2	Swedish	ruta	square, tile; windowpane; panel
3	Middle Low German	rūte	—
4	Old High German	rūta	—
5	Latin	rūta	rue bitter herb
6	Ancient Greek	ῥυτή	rue

via Finnish hapero

Step	Language	Word	Meaning
1	Finnish	hapero	brittlegill, russula; brittle
2	Finnish	hapera	brittle
3	Finnish	haprea	—
4	Finnish	hauras	brittle, fragile, frail, friable, crumbly,...
5	Proto-Finnic	hapras	brittle, fragile, weak

Every word from Ancient Greek ῥυτή →Every word from Latin rūta →Every word from Old High German rūta →