backflash
flash back
madeleine
flashback
remembrancing
inception flashback
roll back the years
reminisce
otzovism
old times
langsyne
lang syne
nostalgia goggles
auld langsyne
oh yeah
good old days
reminder
replay
nostalgist
remembrance
retronymously
ecmnesia
revive
recallment
cryptomnesia
recall
recollection
nostophobia
doodad
otzovist
bring back
reminiscential
retrospection
analepsis
reminiscitory
jog someone's memory
take back
retroorbitary
cast one's mind back
reminiscence
retrospectroscope
for old times' sake
reliquary
atavism
reminiscent
reenactment
nostalgic
misremembering
ain't what it used to was
think back