The Collaborative International Dictionary of English v.0.48:

Painim \Pai"nim\, n. [OE. painime pagans, paganism, fr. OF.
   paienisme paganism, LL. paganismus. See Paganism, Pagan.]
   A pagan; an infidel; -- used also adjectively. [Written also
   panim and paynim.] --Peacham.
   [1913 Webster]