GNU Collaborative International Dictionary of English

Found one definition

1.       
   Tome , n. [F. tome (cf. It., Sp., & Pg. tomo), L. tomus, fr. Gr.  a piece cut off, a part of a book, a volume, akin to  to cup, and perhaps to L. tondere to shear, E. tonsure. Cf. Anatomy, Atom, Entomology, Epitome. ] As many writings as are bound in a volume, forming part of a larger work; a book; -- usually applied to a ponderous volume.
   1913 Webster
   Tomes of fable and of dream.
   Cowper.
   
   1913 Webster
   A more childish expedient than that to which he now resorted is not to be found in all the tomes of the casuists.
   Macaulay.
   
   1913 Webster