Rudeness
来自Big Physics
Middle English(in rude (sense 4), also ‘uncultured’): from Old French, from Latin rudis ‘unwrought’ (referring to handicraft), figuratively ‘uncultivated’; related to rudus ‘broken stone’.
wiktionary
From Middle English rudenesse, equivalent to rude + -ness.
etymonline
rudeness (n.)
late 14c., "want of cultivation or manners, uncouthness;" c. 1400, "plainness, lack of artistry," from rude (adj.) + -ness. From 1530s, "bad manners." Rudeship (mid-15c.) also was used in the sense of "lack of gentleness, roughness."
