ör-

From Old Norse ør- (“out-”), from Proto-Germanic *uz- (“up, out”).^[1] Doublet of úr (“out of”, preposition + dative).

• IPA^(key): /øːr/

ör-

1. extremely, very

   ‎snauður (“poor”) + ‎ör- → ‎örsnauður (“dirt-poor”, adjective)

   ‎fjúka (“to be blown away”) + ‎ör- → ‎örfoka (“eroded (by wind)”, adjective)

2. devoid of, short of

   ‎uggur (“fear”) + ‎ör- → ‎öruggur (“secure”, adjective)

   ‎björg (“rescue”) + ‎ör- → ‎örbjarga (“helpless”, adjective)

3. micro- (very small)

   ‎bylgja (“wave”) + ‎ör- → ‎örbylgja f (“microwave”)

• Jan de Vries (1977) [1957–1960], “ør-”, in Altnordisches etymologisches Wörterbuch [Old Norse Etymological Dictionary] (in German), 3rd edition, Leiden: E[vert] J[an] Brill, →OCLC, page 682.