Proto-Austric: *kVʔ
Meaning: older brother
Proto-Austroasiatic: *kuʔ Austroasiatic meaning: kinship term
Miao-Yao parallels: Yao kɔ.4 older brother;kǝu.1 male (of some grown animals), ku.4 grandmother
Proto-Austronesian: *kaka 'older brother'; (Ache tɨŋku address term for adult male)