Nostalgic
来自Big Physics
late 18th century (in the sense ‘acute homesickness’): modern Latin (translating German Heimweh ‘homesickness’), from Greek nostos ‘return home’ + algos ‘pain’.
wiktionary
From nostalgia + -ic.
etymonline
nostalgic (adj.)
1806, "relating to, characteristic of, or affected with nostalgia, homesick," from nostalgia + -ic. The modern weaker sense of "evoking a wistful and sentimental yearning for the past" is by 1944. Related: Nostalgically.