Green’s Dictionary of Slang

(US) abolition (of slavery); also attrib.

1842		Whip & Satirist of NY & Brooklyn (NY) 5 Mar. n.p.: Brandy-tiplers from now till bobolition day, amen!
1851		Dly Crescent (New Orleans, LA) 26 May 1/6: Boloition (extra) — In the course of a speech delivered at the ‘Anniversary of the American Anti-Slavery Society’ [etc.].
1862		Eve. Star (Wash., DC) 2 Apr. 1/2: He says ‘Gen. McClennan don’t go strong nuff for bobolition!’.