Where does “ro” come from?

ro (Middle English) comes from Old English rō, from Proto-West Germanic rōu, from Proto-Germanic *rōō, from Proto-Indo-European h₁reh₁- — to row; to separate; loose, sparse, rare.

ro (Middle English): A roe deer; The hide of a roe deer; Peacefulness,...

Definitions

A roe deer; The hide of a roe deer; Peacefulness,...

Ancestry of “ro”, step by step

Step	Language	Word	Meaning
1	Old English	rō	—
2	Proto-West Germanic	rōu	calm, quiet; rest, repose
3	Proto-Germanic	*rōō	calm, quiet
4	Proto-Indo-European	h₁reh₁-	to row; to separate; loose, sparse, rare

Words derived from “ro”

Roebuck
roebuck
Roback
roa
roobukke

Every word from Proto-Indo-European h₁reh₁- →Every word from Proto-Germanic *rōō →Every word from Proto-West Germanic rōu →