Japanese edit

Alternative forms edit

Etymology edit

Emphatic form of いつか (itsuka).

Pronunciation edit

Adverb edit

いつしか (itsushika

  1. before one knew it

References edit

  1. ^ Matsumura, Akira, editor (2006), 大辞林 [Daijirin] (in Japanese), Third edition, Tōkyō: Sanseidō, →ISBN