dominatrix (n.)youdaoicibaDictYouDict[dominatrix 词源字典]
"dominant female entity," attested since 1560s, though not in quite the usual modern sense ("Rome ... dominatrix of nations" [1561]). See domination + -trix. Modern BDSM sense attested by 1976.[dominatrix etymology, dominatrix origin, 英语词源]