記き憶おく違ちがい

noun

misremembering; false memory; memory lapse

Refers to remembering something incorrectly or having a mistaken recollection. Often used when someone realizes their memory was wrong.

• それは私わたしの記き憶おく違ちがいだった。

  That was my mistake in memory.

• 記き憶おく違ちがいでなければ、彼かれは昨日きのうここに来きたはずだ。

  If my memory serves me right, he should have come here yesterday.