chiv, n.² — Green’s Dictionary of Slang

chiv n.²

[SE chivalry; f. the South’s obsession with ‘honour’ and ‘chivalry’]

(US, Western) a white Southerner.

1860		B. Taylor At Home and Abroad 3 Ser. (1888) 322: How long, I wondered, before these Chivs (the Californian term for Southerners—an abbreviation of Chivalry) start the exciting topic [slavery] [DA].
1881		City Argus (S.F.) 2 July 1/5: The ‘chivs’ will have to take a back seat in the future [DA].
1910		J. Hart Vigilante Girl 293: These Chivs have been bullying us Northern Democrats long enough [DA].