Where does “transversal” come from?

transversal (Spanish) comes from Medieval Latin transversalis, from Latin transversus, from Proto-Italic *trānsworssos.

transversal (Spanish): transversal

Definitions

Step	Language	Word	Meaning
1	Medieval Latin	transversalis	transverse
2	Latin	transversus	turned across, lying across, from side to side;...
3	Proto-Italic	*trānsworssos	—

transversal — Etymology, Origin & Word History | Etymology Explorer