'Prolegomena' definitions:

Definition of 'Prolegomena'

From: GCIDE

Prolegomenon \Prol`e*gom"e*non\, n.; pl. Prolegomena. [ NL., fr. Gr. ?, properly neut. pass. p. pr. of ? to say beforehand; ? before + ? to say.] A preliminary remark or observation; an introductory discourse prefixed to a book or treatise. --D. Stokes (1659). Sir W. Scott. [1913 Webster]