Ur Definition
ûr, o͝or
prefix
Original; prototypical.
Ur-feminist; ur-language.
American Heritage
noun
(initialism) Of underlying representation, a concept in phonology and morphophonology.
Wiktionary
Origin of Ur
Ger: akin to Goth us, ON ōr, out of, from, OE or-, early
From Webster's New World College Dictionary, 5th Edition
-
From German ur– original Ursprache
From American Heritage Dictionary of the English Language, 5th Edition