Southern Altai уйку

← Azerbaijani yuxu (cognate)

← Crimean Tatar yuqu (cognate)

← Chuvash ыйхӑ (cognate)

← Khakas уйғу (cognate)

← Kazakh ұйқы (cognate)

← Karachay-Balkar джукъу (cognate)

← Kumyk юху (cognate)

← Kyrgyz уйку (cognate)

← Turkmen uky (cognate)

← Turkish uyku (cognate)

← Proto-Turkic *ūdɨku (inherited)

← Proto-Turkic *ūdɨ- (inherited)

← Tuvan уйгу (cognate)

← Uzbek uyqu (cognate)

→ Bashkir йоҡо (cognate)