Errantia :: Errantia (n. pl.) A group of chaetopod annelids, including those that are not confined to tubes. See Chaetopoda..
Errantry :: Errantry (n.) A wandering; a roving; esp., a roving in quest of adventures..
Errantry :: Errantry (n.) The employment of a knight-errant.
Knight-errant :: Knight-errant (n.) A wandering knight; a knight who traveled in search of adventures, for the purpose of exhibiting military skill, prowess, and generosity..
Knight-errantry :: Knight-errantry (n.) The character or actions of wandering knights; the practice of wandering in quest of adventures; chivalry; a quixotic or romantic adventure or scheme.