と
 
っ
 
く
 
に

adverb

Usually written with kana alone.
  1. long ago, a long time ago, already.

Variations

Pronunciation Kanji Kana Is Common
 
と
 
っ
 
く
 
に
とっくに ✔
と
疾
 
っ
 
く
 
に
疾っくに とっくに