Where does “o-” come from?

o- (Swedish) comes from Old Swedish ō-, from Old Norse ú-, from Proto-Germanic un-, from Proto-Indo-European n̥-, from Proto-Indo-European ne — not.

o- (Swedish): added to adjectives to yield their opposites;...

Definitions

  1. added to adjectives to yield their opposites;...

Ancestry of “o-”, step by step

StepLanguageWordMeaning
1Old Swedishō-—
2Old Norseú-not, non-, un-
3Proto-Germanicun-not, un-
4Proto-Indo-Europeann̥-not, un-
5Proto-Indo-Europeannenot

Words derived from “o-”

Every word from Proto-Indo-European ne →Every word from Proto-Indo-European n̥- →Every word from Proto-Germanic un- →