Old English cnihthad "the period between childhood and manhood;" see knight (n.) + -hood. Sense of "rank or dignity of a knight" is from c. 1300, and probably is an independent formation.
权威例句
1. The highest Order of Knighthood is the Order of the Garter.
最高骑士勋位是嘉德勋位。
2. He received a knighthood in the New Year's Honours list.
他是新年受勋者之一,荣获爵士称号。
3. He was rewarded with a knighthood for his service to the government.
他为政府服务而获授予爵位.
4. Sir Joseph's knighthood was the final feather in his cap after years of dedicated service to the community.