Where does “exerrans” come from?

exerrans (Latin) comes from Latin exerro, from Latin errō, from Proto-Italic erzāō, from Proto-Indo-European h₁ers- — to flow.

Definitions

Ancestry of “exerrans”, step by step

StepLanguageWordMeaning
1LatinexerroI wander off or away
2Latinerrōto wander, rove, stray, roam
3Proto-Italicerzāōroam, wander; go astray, waver
4Proto-Indo-Europeanh₁ers-to flow
Every word from Proto-Indo-European h₁ers- →Every word from Proto-Italic erzāō →Every word from Latin errō →