rebuff (n.) Look up rebuff at Dictionary.com
1610s, from rebuff (v.), or from Middle French rebuffe or Italian ribuffo.
rebuff (v.) Look up rebuff at Dictionary.com
1580s, from obsolete French rebuffer "to check, snub," from Italian ribuffare "to check, chide, snide," from ribuffo "a snub," from ri- "back" (from Latin re-, see re-) + buffo "a puff," of imitative origin (compare buffet (v.)). Related: Rebuffed; rebuffing.