Reconstruction:Proto-Sino-Tibetan/tjak ~ g-t(j)ik

Etymology

 * Proto-Sino-Tibetan: *tyik ⪤ *tyak (LaPolla, 1987); *gtyik (Coblin, 1986); *tyɑk (Chou, 1972)
 * Proto-Tibeto-Burman: *tyak ⪤ g-t(y)ik (Matisoff, STEDT); *tyɑk ~ tyik (Chou, 1972)

Numeral

 * 1) one

Descendants

 * Old Chinese:  (B-S),  (ZS) ("single, one of a pair")
 * Middle Chinese:


 * Modern Mandarin
 * Beijing:, )
 * Cantonese
 * Guangzhou:
 * Wu
 * Shanghai:
 * Min
 * Min Nan
 * Taiwan:  ,
 * Himalayish
 * Tibeto-Kanauri
 * Bodic
 * Tibetan
 * Written
 * Eastern Bodish:
 * Tangut-Qiang
 * Northern Tangut
 * Lolo-Burmese-Naxi
 * Lolo-Burmese: *ʔ-dikᴸ (Matisoff, 2003)
 * Burmish
 * Written
 * (Bradley, 1979)
 * Northern Loloish
 * Yi (Liangshan):
 * Central Loloish
 * Lisu (Southern):
 * Northern Loloish
 * Yi (Liangshan):
 * Central Loloish
 * Lisu (Southern):