late 14c., in membres genytal "the genitals," from Latin genitalis "pertaining to generation or birth" (also a by-name of the goddess Diana), from genitus, past participle of gignere "to beget" (see genus). As a noun meaning "sex organ" from mid-15c.
genital gen·i·tal (jěn'ĭ-tl)
Of or relating to biological reproduction.
Of or relating to the genitalia.
Of or relating to the stage of psychosexual development in psychoanalytic theory beginning in puberty and during which the genitals become the focus of sexual gratification.