U.S. slang. [prob. north. Eng. dial. Is’ wan ye lit. ‘I shall warrant you.’] = SWAN v.2
1839. Salem Advertiser, 18 Sept., 3/2 (Thornton). ‘Capt. Center, didn’t I tell you Van Buren was not the man?’ ‘Yes you did, I swanney.’
1844. ‘J. Slick,’ High Life N. York, II. 132. I swanny, it eenamost made me boo-hoo right out.
