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English word rude comes from Latin rudis
rudis (Latin)
Foil (given to a gladiator upon his discharge). Small stick (New Latin) Used as a specific epithet. Rough, raw, uncultivated. Unrefined, unskilled, awkward.
ruide (Old French)
rude (Middle English)
rude (English)
Bad-mannered.. Hearty, vigorous; found particularly in the phrase rude health.. Somewhat obscene, pornographic, offensive.. Tough, robust.. Undeveloped, unskilled, basic.