cryptomnesia
/ˌkrɪptɒmˈniːʒə/
a forgotten memory returning without recognition as such
cryptomnesia in a sentence
“His 'original' melody was cryptomnesia—he'd heard it years ago and forgotten.”
Origin of cryptomnesia
Greek kryptos hidden + mnesis memory
Related Words
source confusion
misattributing the source of a memory
leveling and sharpening
losing details while emphasizing others when retelling
misinformation effect
post-event information altering memory of the original event
reminiscence bump
enhanced recall of events from adolescence and early adulthood
telescoping effect
perceiving recent events as more remote and remote events as more recent
positivity effect
older adults favoring positive over negative information in memory