[rib.ald] n [ME, fr. MF ribaut, ribauld wanton, rascal, fr. riber to be wanton, of Gmc origin; akin to OHG riban to be wanton, lit., to rub] (13c): a ribald person
[2]ribald adj (1508) 1: crude, offensive "~ language"
2: characterized by or using coarse indecent humor syn see coarse