므슥

Etymology
This is one of four related Middle Korean interrogatives all beginning with :, , , and. The precise etymological relationship between the four remains unclear.

Pronoun

 * 1)  what

Usage notes

 * is used before the interrogative particle.
 * is used before other consonant-initial particles, and before the verb "to do".
 * is used before vowel-initial particles.
 * In the Early Modern period, the pronouns are ultimately supplanted by the new pronoun, whence modern ,.