PLATO coins the unique word hetairístria (Symp. 19e) for a passive lesbian, and from it Pollux 6.188 derives hetairistês for a masculine Lesbian. The common classical word for lesbian, however, in both Greek and Latin, was tribás, from tríbein, to rub, FROT, or MASTURBATE (Martial 7.67, 7.70; Lucian, Amores 28; Phaedrus 4.15; Ptolemy Tetrab. III 18f. 44r 33; Manetho 4.358; Krenkel 1989; Jocelyn 1980).