憶おく念ねん

noun

unforgettable thought; something one will always remember

Refers to a thought, memory, or feeling that stays in one's mind and is not easily forgotten. Often used in literary or reflective contexts.

• あの日ひの出で来き事ごとは、今いまもなお私わたしの憶おく念ねんに残のこっている。

  The events of that day still remain as an unforgettable thought in my mind.

• 彼かれの言こと葉ばは深ふかい憶おく念ねんとなって心こころに刻きざまれた。

  His words became a deep, lasting memory etched in my heart.