Noun
Keltoi pl (plural only)
(historical) The Celts.
H. D. Rankin, citation In the 5th century BC Herodotus referred to Keltoi living around the head of the Danube and also in the far west of Europe. Source: Internet
Some of the societies that are archaeologically identified with La Tène material culture were identified by Greek and Roman authors from the 5th century onwards as Keltoi (" Celts ") and Galli (" Gauls "). Source: Internet