Where does “ardu-” come from?
ardu- (Gaulish) comes from Northern Kurdish du, from Proto-Iranian duHmáh, from Proto-Indo-Iranian dʰuHmás, from Proto-Indo-European dʰuh₂mós, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.
ardu- (Gaulish): high, in altitude
Definitions
- high, in altitude