From Vietnamese trân <span class="searchmatch">châu</span>, from Chinese 珍珠 (zhēnzhū). <span class="searchmatch">tlần</span> <span class="searchmatch">chầu</span> pearl...
Vietnamese Wikipedia has an article on: ngọc trai Wikipedia vi (classifier viên, hòn) trân <span class="searchmatch">châu</span> pearl Synonym: ngọc trai trà trân <span class="searchmatch">châu</span> → Muong: <span class="searchmatch">tlần</span> <span class="searchmatch">chầu</span>...
*kâŋ from earlier *klaŋ and proposed OC word's cognacy to Mru klaŋ, Mizo <span class="searchmatch">tlaŋ</span> (“male”), Karbi chè lóŋ (“buffalo”), and Tibetan གླང (glang, “ox”), the latter...