人-312 姨 (名) ① one’s mother’s sister; aunt ② one’s wife’s sister; sister-in-law

姨   姨是形声字。女为形符；夷为声符。《说文》注：“妻之女弟，同出为姨。从女,夷声。”姨义为妻子已出嫁之姐妹，亦称母亲之姐妹，泛指年纪与母亲不相上下之妇女。

姨 (名) ① one’s mother’s sister; aunt ② one’s wife’s sister; sister-in-law