Webster’s Revised Unabridged Dictionary · 1913
Knightly
Knight′ly, a. [AS. cnihtlic boyish.] Of or pertaining to a knight; becoming a knight; chivalrous; as, a knightly combat; a knightly spirit.
For knightly jousts and fierce encounters fit. Spenser.
[Excuses] full knightly without scorn. Tennyson.
Knight′ly, adv. In a manner becoming a knight.
And why thou comest thus knightly clad in arms. Shak.