- (from Revised Romanization) gugyeol
- (from McCune-Reischauer) kugyŏl
Borrowed from Korean 구결(口訣) (gugyeol), from Middle Chinese 口訣 (MC kʰəuX kwet̚, “mnemonic rhyme”), from 口 (kǒu, “mouth”) + 訣／诀 (jué, “rhymed saying”).
The spelling comes from the Yale romanization of kwūkyel.
- Abbreviated Chinese characters used to represent Korean grammatical items, inserted into a Chinese-character (Classical Chinese or itwu) text.