Japanese edit

 アヤカシ (妖怪) on Japanese Wikipedia
 Ayakashi (yōkai) on Wikipedia

Noun edit

あやかし (ayakashi

  1. a yokai that appears above seawater during shipwrecks
  2. a mystery; an unexplained phenomenon
  3. Synonym of 妖怪 (yōkai)
    • 2020 September 19, Mafumafu (lyrics and music), “百鬼夜行 [Night Parade of A Hundred Demons]”:
      何万年 (あやかし)たち
      踊る 夜宴の夢
      Nanmannen ayakashi-tachi wa
      Odoru yaen no yume
      For myriads of years, the yokai
      Have been dancing, our soiree dreams
  4. Synonym of 馬鹿 (baka, idiot; fool)
  5. Synonym of コバンザメ (kobanzame, live sharksucker)
  6. a type of Noh mask representing ghosts or spirits