dingy

dingy · adjective¹

1. Old English · inherited from*dyncgiġ“covered with dung, dirty”
2. Middle English · inherited from*dingy
3. English todaydingy

From English dialectal (Kentish) dingy (“dirty”), of unknown origin, though probably from Middle English *dingy, dungy, from Old English *dyncgiġ (“covered with dung, dirty”), an umlaut form of duncge, dung (“dung”), equivalent to dung + -y, hence a doublet of dungy.

dingy · adjective²

From ding + -y.