Where does “ruotsinlaiva” come from?

ruotsinlaiva (Finnish) comes from Finnish ruotsi, from Proto-Finnic *roocci, from Old Swedish roþs-, from Old Norse róðr, from Proto-Germanic rōþrą, from Proto-Indo-European h₁reh₁- — to row; to separate; loose, sparse, rare.

ruotsinlaiva (Finnish): Any of the large, well-equipped, even luxurious...

Definitions

Any of the large, well-equipped, even luxurious...

Ancestry of “ruotsinlaiva”, step by step

ruotsinlaiva traces back through two separate lines of ancestry.

via Finnish ruotsi

Step	Language	Word	Meaning
1	Finnish	ruotsi	Swedish
2	Proto-Finnic	*roocci	Swede originally anyone from Roslagen
3	Old Swedish	roþs-	related to rowing
4	Old Norse	róðr	rowing
5	Proto-Germanic	rōþrą	oar; rudder
6	Proto-Indo-European	h₁reh₁-	to row; to separate; loose, sparse, rare

via Finnish laiva

Step	Language	Word	Meaning
1	Finnish	laiva	ship; nave
2	Proto-Finnic	laiva	ship
3	Proto-Finnic	lawja	—
4	Proto-Germanic	flawją	ship, vessel
5	Proto-Indo-European	plew-	to fly, flow, run

Every word from Proto-Indo-European h₁reh₁- →Every word from Old Swedish roþs- →Every word from Proto-Finnic *roocci →