The Collaborative International Dictionary of English v.0.48:

Hain't \Hain't\ (h[=a]nt).
   A contraction of have not or has not; as, I hain't, he
   hain't, we hain't. [Colloq. or illiterate speech.] [Written
   also han't.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Han't \Han't\ (h[=a]nt; in England, h[aum]nt).
   A contraction of have not, or has not, used in illiterate
   speech. In the United States the commoner spelling is
   hain't.
   [1913 Webster] Hanukka