cunnilingus

cun-,阴户，词源同cunt.-ling,舔，词源同tongue,language.

cunnilingus (n.)

1887, from Latin cunnus "vulva" (see cunt) + lingere "to lick" (see lick (v.)). The Latin properly would mean "one who licks a vulva," but it is used in English in reference to the action, not the actor. The verb ought to be *cunnilingue.

Cunnilingus was a very familiar manifestation in classical times; ... it tends to be especially prevalent at all periods of high civilization. [Havelock Ellis, 1905]

1. Other practices , such as fellatio and cunnilingus appear to be relatively, but not absolutely, safe.

其他如口淫或舐阴等性方式则相对而非绝对安全.