うる

Etymology 1
From (compare 🇨🇬, 🇨🇬, 🇨🇬, 🇨🇬).

Noun

 * 1)  lime
 * 2)  mortar, plaster, stucco
 * 3)  reef
 * 4)  rocks of a reef
 * 1)  reef
 * 2)  rocks of a reef

Etymology 2
Borrowed from.

Noun

 * 1) cave