Cumbrian
Pronunciation : Cum"bri*an (km"br-an)
Part of Speech : a.
Definition : Defn: Pertaining to Cumberland, England, or to a system of rocks found there. Cumbrian system (Geol.), the slate or graywacke system of rocks, now included in the Cambrian or Silurian system; -- so called because most prominent at Cumberland.
Source : Webster's Unabridged Dictionary, 1913