midwife

Từ điển Oxford Advanced Learner 8th

mid·wife [midwife midwives] BrE [ˈmɪdwaɪf] NAmE [ˈmɪdwaɪf] noun (pl. mid·wivesBrE [ˈmɪdwaɪvz] ; NAmE [ˈmɪdwaɪvz] )
a person, especially a woman, who is trained to help women give birth to babies
compare ↑doula

Word Origin:
Middle English: probably from the obsolete preposition mid ‘with’ + ↑wife (in the archaic sense ‘woman’), expressing the sense ‘a woman who is with (the mother)’.