Booi Aha (Manchu: ᠪᠣᠣᡳ ᠨᡳᠶᠠᠯᠮᠠ(booi niyalma) for male, ᠪᠣᠣᡳ ᡥᡝᡥᡝ(booi hehe) for female; Chinese transliteration: 包衣阿哈) is a Manchu word literally meaning "household person", referring to hereditarily servile people in the 17th century China. It is often directly translated as "bondservant", although sometimes also rendered as "slave" ("nucai").
Read more about Booi Aha: Concept of The Booi Aha, Usage, Booi Aha and The Liaodong Han Chinese, Upper Three Banners of Neiwufu, Status of The Booi Aha, See Also