Kyrgyz кырк

← Azerbaijani qırx (cognate)

← Bashkir ҡырҡ (cognate)

← Karachay-Balkar къыркъ (cognate)

← Turkmen kyrk (cognate)

← Turkish kırk (cognate)

← Proto-Turkic *kïrk (inherited)

← Tatar кырык (cognate)

← Uzbek qirq (cognate)

→ Southern Altai кырык (cognate)