nostalgia

noun

1. a wistful desire to return in thought or in fact to a former time in one’s life, to one’s home or homeland, or to one’s family and friends; a sentimental yearning for the happiness of a former place or time: a nostalgia for his college days.
2. something that elicits or displays nostalgia.

noun

1. a yearning for the return of past circumstances, events, etc
2. the evocation of this emotion, as in a book, film, etc
3. longing for home or family; homesickness

n.1770, “severe homesickness” (considered as a disease), Modern Latin (cf. French nostalgie, 1802), coined 1668 by Johannes Hofer, as a rendering of German heimweh, from Greek algos “pain, grief, distress” (see -algia) + nostos “homecoming,” from PIE *nes- “to return safely home” (cf. Old Norse nest “food for a journey,” Sanskrit nasate “approaches, joins,” German genesen “to recover,” Gothic ganisan “to heal,” Old English genesen “to recover”). Transferred sense (the main modern one) of “wistful yearning for the past” first recorded 1920. n.

1. A bittersweet longing for things, persons, or situations of the past.
2. The condition of being homesick; homesickness.