Where does “or-” come from?

or- (Middle Dutch) comes from Old Dutch ur-, from Proto-West Germanic uʀ-, from Proto-Germanic uz-, from Proto-Indo-European uss-, from Proto-Indo-European uds-, from Proto-Indo-European úd — out, outward.

or- (Middle Dutch): A prefix with a variety of meanings, but...

Definitions

  1. A prefix with a variety of meanings, but...

Ancestry of “or-”, step by step

StepLanguageWordMeaning
1Old Dutchur-
2Proto-West Germanicuʀ-out, over; off, away
3Proto-Germanicuz-up, out
4Proto-Indo-Europeanuss-
5Proto-Indo-Europeanuds-up, out
6Proto-Indo-Europeanúdout, outward

Words derived from “or-

Every word from Proto-Indo-European úd