nisberry

from The Collaborative International Dictionary of English v.0.48

Naseberry \Nase"ber`ry\ (n[=a]z"b[e^]r*r[y^]), n. [Sp. nispero
   medlar and naseberry tree, fr. L. mespilus. See {Medlar}.]
   (Bot.)
   A tropical fruit. See {Sapodilla}. [Written also {nisberry}.]
   [1913 Webster]