돛

Etymology
For phonological reasons, cannot be a direct ancestor of Modern Seoul Korean. Meanwhile, certain dialects preserve a direct reflex of the Middle Korean form, such as Pyongan. Rather, the Middle Korean and Modern Seoul Korean forms must descend from a common ancestor, and the coda consonant differences of the two forms reflect the conflation between and  which appears to have been current at some stage of the Korean language before Hangul was invented (Middle Korean  behaves as a h-c or c-h consonant cluster). It has been proposed that the Old Korean phonemes *k and *h shared allophones, explaining the conflation.

Noun

 * 1) sail; canvas