こつ
忽
えん
焉

'taru' adjective, adverb taking the と particle

  1. sudden, unexpected.

Variations

Pronunciation Kanji Kana Is Common
こつ
忽
えん
焉
 忽焉 こつえん

Contained Kanji Breakdown

in a moment, instantly, all of a sudden
コツ　たちま.ち　ゆるが.せ (Kentei Pre-1)
not, must not, do not
モチ　ブツ　ボツ (Kentei Pre-1)
wrapping enclosure, wrapping radical (no. 20)
ホウ　つつ.む (Kentei 1)
heart, mind, spirit
こころ　シン (2nd, N4)
how, why, then
エン　いずく.んぞ　ここに (Kentei 1)
correct, justice, righteous
セイ　ショウ　ただし (1st, N4)
one, one radical (no.1)
イチ　いっ　ひと- (1st, N5)
stop, halt
と.まる　シ　どめ (2nd, N4)
divining, fortune-telling, divination or katakana to radical (no. 25)
ボク　うらな.う　うらない (Kentei Pre-1)
fire, fire radical (no. 86)
ヒョウ　カ