JMdict: 1278390

幸甚 【こうじん】

  1. [n] being extremely grateful; being much obliged; being very appreciative; being very happy
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
幸 Happiness, Blessing, Fortune コウ さいわ.い, さち, しあわ.せ 3
甚 Tremendously, Very, Great, Exceedingly ジン はなは.だ, はなは.だしい