KNIGHTLY
chivalrous, gallant, knightly
(adjective) being attentive to women like an ideal knight
chivalric, knightly, medieval
(adjective) characteristic of the time of chivalry and knighthood in the Middle Ages; “chivalric rites”; “the knightly years”
Source: WordNet® 3.1
Etymology
Adjective
knightly (comparative knightlier, superlative knightliest)
Of or pertaining to a knight or knights.
Befitting a knight; formally courteous (as a knight); chivalrous, gallant and courtly.
Adverb
knightly (comparative more knightly, superlative most knightly)
In the manner of a knight; chivalrously.
Source: Wiktionary
Knight`ly, a. Etym: [AS. cnihtlic boyish.]
Definition: 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.
Definition: In a manner becoming a knight.
And why thou comest thus knightly clad in arms. Shak.
Source: Webster’s Unabridged Dictionary 1913 Edition