꽃

Etymology
from perhaps to explain the unusual low pitch on a monosyllabic noun; see Appendix:Koreanic reconstructions for more.

The change to a tense consonant initial occurred as this word ("flower") was frequently used as the second part of a compound noun denoting a specific flower (e.g. ), in which the connecting genitive formed a "-sk-" medial cluster with koc, which developed into "-kk-" in Modern Korean. This development in compound nouns was generalised to koc as well.

Noun

 * 1)  flower; flowering plant
 * 2)  prime; central part; essence
 * 1)  prime; central part; essence
 * 1)  prime; central part; essence
 * 1)  prime; central part; essence