c.1275, hennes, from O.E. heonan "away, hence" + adverbial gen. -s, from W.Gmc. *khin- (cf. O.S. hinan, O.H.G. hinnan, Ger. hinnen); related to O.E. her "here." The modern spelling is phonetic, to retain the breathy -s-. Original sense is "away from here;" of time, from c.1380; meaning "from this (fact or circumstance)" first recorded 1586.