Where does “sul” come from?

sul (Romanian) comes from Vulgar Latin sublum, from Latin sūbulum, from Latin insubulum, from Latin insuō, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en — in.

sul (Romanian): roll, roller; warp beam of a weaving loom

Definitions

roll, roller; warp beam of a weaving loom

Ancestry of “sul”, step by step

Step	Language	Word	Meaning
1	Vulgar Latin	sublum	—
2	Latin	sūbulum	—
3	Latin	insubulum	warp beam of a weaver's loom
4	Latin	insuō	to sew up; to sew in or into
5	Latin	īn-	un-, non-, not
6	Latin	în	in, at, on, upon, from (space)
7	Latin	en	lookǃ beholdǃ; reallyǃ?; come onǃ
8	Proto-Italic	en	in
9	Proto-Indo-European	h₁én	in

Every word from Proto-Indo-European h₁én →Every word from Latin īn- →Every word from Proto-Italic en →