rude
rough, crude, or unrefined
Root
- rud: rough, raw, or untrained
Other words with the rud root
- erudite: learned or scholarly
- erudition: deep learning or scholarship
- rudiment: a basic beginning or undeveloped part
- rudimentary: basic or undeveloped
Rud starts with roughness. Rude began closer to rough or untrained before it became impolite.
The cabin was rude but sturdy.