Where does “geðröskun” come from?

geðröskun (Icelandic) comes from Icelandic röskun, from Icelandic -un, from Icelandic -an, from Old Norse -an, from Proto-Germanic -ōniz, from Proto-Germanic -niz, from Proto-Indo-European -nis.

geðröskun (Icelandic): mental disorder

Definitions

  1. mental disorder

Ancestry of “geðröskun”, step by step

geðröskun traces back through two separate lines of ancestry.

via Icelandic röskun

StepLanguageWordMeaning
1Icelandicröskundisturbance
2Icelandic-un"Forms nouns from verbs denoting the action or...
3Icelandic-an
4Old Norse-anUsed to derive nouns from class 2 weak verbs;...
5Proto-Germanic-ōnizForms abstract nouns from weak class 2 verbs
6Proto-Germanic-nizForms abstract nouns from verbal roots and stems
7Proto-Indo-European-nis

via Icelandic geð

StepLanguageWordMeaning
1Icelandicgeðmind; mood, feeling; temper, disposition
2Old Norsegeðmind; mood; wits; senses
3Proto-Germanicgadjąmind; courage
Every word from Proto-Indo-European -nisEvery word from Icelandic -unEvery word from Old Norse -an