忘ぼう却きゃくの彼か方なた

expression, noun

obscurity; dustbin of history; long-forgotten memory

Used for things that have been completely forgotten, often with a dramatic or literary tone. Common in phrases like 忘却の彼方に消える or 忘却の彼方へと追いやられる.

• その事じ件けんは人ひと々びとの記き憶おくから消きえ、忘ぼう却きゃくの彼か方なたへと追おいやられた。

  The incident faded from people's memories and was consigned to the dustbin of history.

• かつての流りゅう行こう語ごも今いまでは忘ぼう却きゃくの彼か方なただ。

  Even the once-popular buzzwords are now long-forgotten.