Where does “remulcare” come from?

remulcare (Vulgar Latin) comes from Latin remulcum, from Ancient Greek ῥυμουλκέω, from Ancient Greek ῥῦμα — tow-line.

Ancestry of “remulcare”, step by step

Step	Language	Word	Meaning
1	Latin	remulcum	towrope
2	Ancient Greek	ῥυμουλκέω	to pull a towing rope
3	Ancient Greek	ῥῦμα	tow-line