ER'RANT, adjective [Latin errans, from erro, to err.] 1. Wandering; roving; rambling; applied particularly to knights, who, in the middle ages, wandered about to seek adventures and display their heroism and generosity, called knights errant 2. Deviating from a certain course. 3. Itinerant. Errant, for arrant, a false orthography. [See Arrant.]
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI