Where does “rubescent” come from?

rubescent (English) comes from Latin rubescens, from Latin rubesco, from Latin rubeō, from Proto-Italic ruðēō, from Proto-Indo-European h₁rudʰéh₁ti, from Proto-Indo-European h₁rewdʰ- — red.

rubescent (English): turning red; reddening

Definitions

turning red; reddening

Ancestry of “rubescent”, step by step

Step	Language	Word	Meaning
1	Latin	rubescens	reddening; reddish
2	Latin	rubesco	I grow or turn red, redden; I blush, redden
3	Latin	rubeō	—
4	Proto-Italic	ruðēō	—
5	Proto-Indo-European	h₁rudʰéh₁ti	to be red
6	Proto-Indo-European	h₁rewdʰ-	red

Every word from Proto-Indo-European h₁rewdʰ- →

rubescent — Etymology, Origin & Word History | Etymology Explorer