errant Look up errant at Dictionary.com
mid-14c., from Anglo-Fr. erraunt, from two O.Fr. words that were confused even before they reached English: 1. O.Fr. errant, prp. of errer "to travel or wander," from L.L. iterare, from L. iter "journey, way," from root of ire "to go" (see ion); 2. O.Fr. errant, pp. of errer (see err). Much of the sense of the latter has gone with English arrant.