U+113C "ᄼ" Hangul Choseong Chitueumsios Unicode Character

U+113C "ᄼ" Hangul Choseong Chitueumsios is a historic or obsolete initial consonant in the Korean writing system, representing a sound from the fifteenth century known as the "chitueumsios" or "tooth-root s-cluster." This character was used in Middle Korean to denote a tense or strongly articulated sibilant, specifically a fortis or aspirated dental fricative that has since merged into modern Korean phonology. As part of the Hangul Jamo block, it appears primarily in linguistic, historical, or digital reconstruction contexts rather than in contemporary Korean text, serving as a scholarly relic of the script's evolutionary past.