ur-source

An original source.

Noun

  1. An original source.
    • If this lecture is indeed the ur-source of “America's Best Idea,” it is ironic that Bryce's flattery has been remembered, even streamlined, while the rest of his address has been entirely forgotten. - 2016, Adrian...
    • For one thing, all the articles seemed to be traceable to a single ur-source, an article in Yonhap news (link in Korean). - 2017, Euny Hong, Please stop saying the Japanese are descended from Koreans:

Origin

From ur- + source.

Forms

ur-sources