with the Tolistobogii and the Trocmi.

The ethnonym Tectosagii is a latinized form of Gaulish *Textosagioi (sing. Textosagios), where the voiceless velar fricative , unknown in Latin, was replaced with the sound . It can be translated as 'those who seek a dwelling', or 'those who seek possessions', from the Celtic stem *texto- ('goods, property, possessions'; cf. Old Irish techt 'possession') attached to sagi- ('who is seeking'). The name can be compared with the Old Irish legal term techtaigidir, meaning 'to seek to establish (or reestablish) legal claim to land'.