rust-, rus-, rura-, ruri-

(Latin: country, farm, land, open land; of the country, simple; living in the country)

rusticism (s) (noun), rusticisms (pl)
rusticity (s) (noun), rusticities (pl)
A condition of being a country or rural person who might lack refinement or someone who is coarse in behavior or has an unsophisticated manner: It is said that rusticity is not knowing much about things; such as, art, literature, and music that educated people usually like.