一切經音義 55.7

55.7

夫壻（下捷計反爾雅云女子之夫為壻儀禮云壻[御/月]御婦車授緌是也考聲云壻女之夫也古今正字從士胥聲或從女作婿）。

夫壻 (The second character has the fanqie 捷 + 計 [xì]. The Erya says: 'A woman's husband is called 壻.' The Yili says: 'The husband acts as driver for the wife's carriage and hands her the reins,' which is this [usage]. The Kaosheng says: '壻 means a daughter's husband.' The Gujin zhengzi says: 'It takes 士 with 胥 as phonetic.' It is also written with the female [radical] as 婿.)