noun ·1 syllable ·Rare ·Advanced level

Definitions

Noun

1. 1
   Abbreviation of systemic exertion intolerance disease. abbreviation, alt-of, uncountable
2. 2
   an Old Norse term for a type of sorcery which was practiced in Norse society during the Late Scandinavian Iron Age. wordnet

Synonyms

All synonyms

seidhseidhrseidrseithseithrsystemic exertion intolerance disease

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.