Jaina

from The Collaborative International Dictionary of English v.0.48

Jain \Jain\, Jaina \Jai"na\, prop. n. [Skr. Jaina, fr. Jina, a
   proper name, fr. jina victorious.]
   One of a numerous sect in British India, holding the tenets
   of Jainism.
   [1913 Webster]