knight-errantry

noun
knight-er·​rant·​ry | \ ˈnīt-ˈer-ən-trē How to pronounce knight-errantry (audio) \
plural knight-errantries

Definition of knight-errantry

1 : the practice or actions of a knight-errant
2 : quixotic conduct

First Known Use of knight-errantry

1620, in the meaning defined at sense 1

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