Gaulish a. : Pertaining to ancient France, or Gaul; Gallic.

Example:
Why did the ancient Celtic and Gaulish Druids practice human sacrifice?

Taxonomy
Gaulish language, inscriptions, language, Irish, NP, Welsh, clitic, Paris, Latin, stems, particle, Recueil des inscriptions gauloises, the Celtic Languages, the Greek alphabet, occlusives, Celtic languages, Latin alphabet, inscriptions on stone.

Defination from the web:
Gaulish (also Gallic) language is the Celtic language that was spoken in Gaul, Belgium, Switzerland, and western Germany before being ... Gaulish is a P-Celtic language, though some inscriptions (e.g. the Coligny Calendar) show Q-Celtic characteristics. ...