Where does “rectus” come from?

rectus (English) comes from Latin rēctus, from Latin regō, from Proto-Italic regō, from Proto-Indo-European h₃réǵeti, from Proto-Indo-European h₃reǵ- — to straighten, to right oneself; right; just.

rectus (English): Any of several straight muscles in various parts...

Definitions

Any of several straight muscles in various parts...

Ancestry of “rectus”, step by step

Step	Language	Word	Meaning
1	Latin	rēctus	led straight along, drawn in a straight line, straight, upright
2	Latin	regō	to rule, govern, direct
3	Proto-Italic	regō	—
4	Proto-Indo-European	h₃réǵeti	to be straightening, to be setting upright
5	Proto-Indo-European	h₃reǵ-	to straighten, to right oneself; right; just

Every word from Proto-Indo-European h₃reǵ- →