ain't what it used to was
nostophobia
nostalgically
dewy-eyed
nostalgize
nostalgism
auld langsyne
nostalgist
lang syne
good old days
langsyne
old times
roll back the years
nostalgic
nostalgiac
unnostalgic
retro-nostalgia
nostalgia goggles
anemoia
yearn
in retrospect
yestertime
recherche du temps perdu
yestertide
old time
yesterday
spavined
send back
God be with the days
reminisce
for old times' sake
formerly
nonremembrance
old timey
historical
alack and alas
bypast
you can't go home again
nostalgia
preterlapsed
had
long ago
unremembering
bad show
retrospection
saccharine
past historic
halcyon days
old-timey
look back