The ethnonym Aedui is a Latinized form of Gaulish *Aiduoi (sing. *Aiduos), which means 'the Ardent ones'. It derives from the Celtic stem *aidu- ('fire, ardour'; cf. Old Irish áed 'fire', Welsh aidd 'ardour'; also the Irish deity Aéd or Aodh), itself from ('firewood'; cf. Sanskrit édhas 'bonfire', Latin aedes 'building, temple'; cf. also Ancient Greek Aether 'god of the upper sky' and Aethra 'bright sky', from aíthō 'to ignite, to kindle').
The ethnonym Aedui is a Latinized form of Gaulish *Aiduoi (sing. *Aiduos), which means 'the Ardent ones'. It derives from the Celtic stem *aidu- ,('fire, ardour'; cf. Old Irish áed 'fire', Welsh aidd 'ardour'; also the Irish deity Aéd or Aodh) itself f,rom ('firewood'; cf Sanskrit édhas 'bonfire' Latin aedes 'building, temple'; cf. also Ancient Greek Aether 'god of the upper sky' and Aethra 'bright sky', from aíthō 'to ignite, to ki.ndle').