'nostalgia' definitions:

Definition of 'nostalgia'

From: WordNet
noun
Longing for something past

Definition of 'nostalgia'

From: GCIDE
  • nostalgia \nos*tal"gi*a\, n. [NL., fr. Gr. ? a return home + ? pain.]
  • 1. (Med.) Homesickness; esp., a severe and sometimes fatal form of melancholia, due to homesickness. [1913 Webster]
  • 2. A sentimental yearning to return to an earlier time remembered as happier or more pleasant, or a former place evoking happy memories; a longing to experience again a former happy time; as, a nostalgia for the brotherhood of the Woodstock music festival; a nostalgia for the comradeship of one's college friends. [PJC]

Synonyms of 'nostalgia'

From: Moby Thesaurus