Meaning

verb make soiled, filthy, or dirty

adjective soiled or likely to soil with dirt or grime

adjective (of behavior or especially language) characterized by obscenity or indecency

originFrom Middle English dirti, alteration of earlier dritti, equivalent to dirt + -y. Cognate with Middle Low German drēterich (“dirty”). See also drite.

Etymology from Wiktionary, CC BY-SA 3.0