pron. 你;尔,汝(古时候的叫法)
n. (Thou)人名;(法、柬)图
thou (用作第二人称单数主格)你,汝
来自 you 的古体用法或诗意用法,来自古英语 thu,你,来自 Proto-Germanic*tu,你,来自 PIE*tu, 第二人称单数人称代词,你,词源同 thee,thine,thy.后由 you 所取代。
Avaunt, caitiff, dost thou thou me! I am come of good kin, I tell thee! ["Hickscorner," c. 1530]A brief history of the second person pronoun in English can be found here.