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a. A medieval tenant giving military service as a mounted man-at-arms to a feudal landholder.
b. A medieval gentleman-soldier, usually high-born, raised by a sovereign to privileged military status after training as a page and squire.
c. A man holding a nonhereditary title conferred by a sovereign in recognition of personal merit or service to the country.
2. A man belonging to an order or brotherhood.
a. A defender, champion, or zealous upholder of a cause or principle.
b. The devoted champion of a lady.
4. Abbr. Kt or N Games A chess piece, usually in the shape of a horse's head, that can be moved two squares along a rank and one along a file or two squares along a file and one along a rank. The knight is the only piece that can jump other pieces to land on an open square.
tr.v. knight·ed, knight·ing, knights
To raise (a person) to knighthood.

[Middle English, from Old English cniht.]

knight′ly adj. & adv.
knight′li·ness n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.knightliness - the medieval principles governing knighthood and knightly conduct
principle - a rule or standard especially of good behavior; "a man of principle"; "he will not violate his principles"
References in periodicals archive ?
Ostensibly, Knightliness just surpasses the power of a Pawn, but the Knight's relative inferiority is deceptive, as Staunton grants that this piece's movement is "different altogether from that of any of the other Chess-men" (36).
In 1931, Weizmann said that he was a danger for the Zionists and for world Jewry, but he once described Jabotinsky as "rather ugly, immensely attractive, well-spoken, warm-hearted, generous--a certain queer and irrelevant knightliness.
Benson's ideal British soldier was a latter day Knight: "The young Christian soldier, high-hearted and courageous, who regards a great fight not as the carrying out of a brutal and aggressive programme, but as a great and noble adventure, may still be a worthy example of knightliness and stainless valour, who is willing, if need be, to make the last sacrifice of love, and to lay down his life for his friends.