vestal
     adj 1: of or relating to Vesta; "vestal virgin"
     2: in a state of sexual virginity; "pure and vestal modesty";
        "a spinster or virgin lady"; "men have decreed that their
        women must be pure and virginal" [syn: {pure}, {virgin}, {virginal},
         {virtuous}]
     n : a chaste woman
Source: WordNet® 2.0