From Wiktionary, the free dictionary
From ㄷ (d, an alveolar consonant) + 구개음화 (gugaeeumhwa, “palatalization”).
ㄷ 구개음화 • (digeut gugaeeumhwa)
- (phonology) palatalization of alveolar consonants to alveolopalatal consonants (e.g. 둏다 (dyota) → 좋다 (jota))
