The story
From Tibetan ཁ་བཏགས་ (kha btags); compare Mongolian хадаг (xadag), Nepali खतक (khatak), Chinese 哈達 /哈达.
Etymology from Wiktionary, CC BY-SA 4.0.
khata
Today it means: A traditional ceremonial scarf in Tengrism and Tibetan Buddhism, symbolizing purity and compassion. Full definition →