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.
例文
1. The highest Order of Knighthood is the Order of the Garter.
最高騎士勲位は嘉徳勲位である。
2.He received a knighthood in the New Year 's Honours list.
彼は新年の受勲者の一人で、ジャズの称号を獲得した。/
3.He was rewarded with a knighthood for his service to the government.
彼は政府に奉仕するために爵位を授与された。
4.Sir Joseph 's knighthood was the final feather in his cap after years of dedicated service to the community.