Proto-Sino-Tibetan: *Kaŋ ( ~ Q-)
Meaning: like, be satisfied
Tibetan: skaŋ satisfaction.
Burmese: khaŋ be attached to, like.
Lepcha: kuŋ to agree, to accord with; to be proper
Comments: For Lepcha cf. rather Burm. kauŋh 'be good, fitting'; ? OC 孔 khōŋʔ 'be great, much, very'.