Where does “silmämäärä” come from?

silmämäärä (Finnish) comes from Finnish määrä, from Old East Slavic мѣра, from Proto-Slavic měra, from Proto-Balto-Slavic mḗˀrāˀ, from Proto-Indo-European meh₁-reh₂, from Proto-Indo-European meh₁- — to measure.

Ancestry of “silmämäärä”, step by step

silmämäärä traces back through two separate lines of ancestry.

via Finnish määrä

Step	Language	Word	Meaning
1	Finnish	määrä	amount, quantity; count, number; aim, target,...
2	Old East Slavic	мѣра	—
3	Proto-Slavic	měra	measure
4	Proto-Balto-Slavic	mḗˀrāˀ	—
5	Proto-Indo-European	meh₁-reh₂	—
6	Proto-Indo-European	meh₁-	to measure

via Finnish silmä

Step	Language	Word	Meaning
1	Finnish	silmä	eye; mesh, opening in a mesh or net
2	Proto-Finnic	silmä	eye
3	Proto-Uralic	śilmä	eye

Every word from Proto-Indo-European meh₁- →Every word from Proto-Indo-European meh₁-reh₂ →Every word from Proto-Balto-Slavic mḗˀrāˀ →