(esp in medieval romance) a knight who wanders in search of deeds of courage, chivalry, etc
Collins Concise English Dictionary © HarperCollins Publishers::
knight-er•rant
(nīt′er′ənt),USA pronunciation n., pl. knights-er•rant.
- World Historya wandering knight;
a knight who traveled widely in search of adventures, to exhibit military skill, to engage in chivalric deeds, etc.
- Middle English 1300–50
'knight errant' also found in these entries (note: many are not synonyms or translations):