2/3/11.
nostalgia (no-stal-juh, no-stal -jee-uh, or nuh- for the prefix) n., A wistful desire to return in thought or in fact to a former time in one’s life; a sentimental yearning for the happiness of a former place or time.
A sudden onset of ‘90s nostalgia prompted her to don clashing jammies and sit way too close to the TV while watching old episodes of The Simpsons.