Webster's Revised Unabridged Dictionary · 1913

Ribald

Ribald , noun

[Old English ribald, ribaud, French ribaud, Old French ribald, ribault, Late Latin ribaldus, of German origin; compare OHG hrīpa prostitute. For the ending -ald compare English Herald.]

A low, vulgar, brutal, foul-mouthed wretch; a lewd fellow. — Spenser. Pope
Ribald was almost a class name in the feudal system... He was his patron's parasite, bulldog, and tool... It is not to be wondered at that the word rapidly became a synonym for everything ruffianly and brutal. — Earle

Ribald , adjective

Low; base; mean; filthy; obscene.
The busy day, Waked by the lark, hath roused the ribald crows. — Shakespeare