lactate (v.)youdaoicibaDictYouDict[lactate 词源字典]
"secrete milk from the breasts," 1889, probably a back-formation from lactation. Related: Lactated; lactating.[lactate etymology, lactate origin, 英语词源]
lactate (n.)youdaoicibaDictYouDict
1794, from stem of lactic + -ate (1).