Knight"-er`rant*ry (?), n.; pl. Knight-errantries ().
The character or actions of wandering knights; the practice of wandering in quest of adventures; chivalry; a quixotic or romantic adventure or scheme.
<-- # in original, the "pl." mark is absent, and is added for consistency with other entries. -->
The rigid guardian [i. e., conscience] of a blameless heart
Is weak with rank knight-erratries o'errun.
Young.
© Webster 1913.