adjective

1. roving or wandering, esp. in search of adventure; itinerant a knight-errant

2. 1. Etymology: OFr, prp. of errer (see err), confused with errer, to rove, travel

      erring or straying from what is right or the right course
   2. shifting about an errant wind
3. Obsolete arrant

Etymology: ME erraunt < OFr errant, prp. of errer < ML iterare, to travel < L iter, a journey: see itinerant