Russian туча

← Old Church Slavonic тѫча (cognate)

← Gothic 𐌸𐌴𐌹𐍈𐍉𐌽 (cognate)

← Proto-Indo-European *tenk- (derived)

← Old Norse þéttr (cognate)

← Old East Slavic туча (derived)

← Polish tęcza (cognate)

← Ukrainian ту́ча (cognate)