“The law refers to stuprum and adultery indiscriminately and with rather a misuse of terms. But properly speaking adultery is committed with a married woman, the name being derived from children conceived by another (alter); stuprum, however, is committed against a virgin or a widow; the Greeks call it corruption.” Digest of Justinian 48. 5.6.1 (Papinian, De Adulteriis 1).
stuprum
stuprum (st[y]oo-pr[schwa]m), n. [Latin] Roman & civil law. Disgrace by unchastity; a man’s illegal sexual intercourse with a woman, usu. a virgin or widow, or with a male (pederasty). Pl. stupra.