Where does “oppisali” come from?

oppisali (Finnish) comes from Finnish sali, from Swedish säl, from Old Norse selr, from Proto-Germanic selhaz, from Proto-Indo-European selk- — to pull, drag; to drag, to furrow; to pull, draw.

oppisali (Finnish): classroom

Definitions

classroom

Ancestry of “oppisali”, step by step

oppisali traces back through two separate lines of ancestry.

via Finnish sali

Step	Language	Word	Meaning
1	Finnish	sali	hall; A large room, often one in which dinners...
2	Swedish	säl	a seal
3	Old Norse	selr	seal; second-person singular present indicative...
4	Proto-Germanic	selhaz	seal
5	Proto-Indo-European	selk-	to pull, drag; to drag, to furrow; to pull, draw

via Finnish oppi

Step	Language	Word	Meaning
1	Finnish	oppi	doctrine; study, -logy, theory; in this sense...
2	Finnish	oppia	to learn
3	Proto-Finnic	oppidak	to learn
4	Proto-Finno-Ugric	woppe-	—

Every word from Proto-Indo-European selk- →Every word from Proto-Germanic selhaz →Every word from Old Norse selr →