Irish ceo

← Avestan 𐬯𐬌𐬌𐬁𐬎𐬎𐬀 (cognate)

← Old English hīew (cognate)

← Proto-Celtic *kiw-o- (inherited)

← English hue (cognate)

← English sky (cognate)

← Persian سیاه (cognate)

← Scottish Gaelic ceò (cognate)

← Manx kay (cognate)

← Proto-Indo-European (inherited)

← Lithuanian šývas (cognate)

← Russian сивый (cognate)

← Old Irish ceó (inherited)

→ English sky (cognate)

→ English hue (cognate)

→ Irish ceoch (affix)

→ Irish toitcheo (affix)