Where does “dunderhead” come from?

dunderhead (English) comes from English head, from English -y, from Middle English -y, from Old English -iġ, from Proto-West Germanic -g, from Proto-Germanic -gaz, from Proto-Indo-European -ḱos — -y, -ic.

dunderhead (English): A stupid person; a dunce

Definitions

  1. A stupid person; a dunce

Ancestry of “dunderhead”, step by step

dunderhead traces back through two separate lines of ancestry.

via English head

StepLanguageWordMeaning
1EnglishheadThe part of the body of an animal or human which...
2English-yAdded to nouns and adjectives to form adjectives...
3Middle English-yDesignates an adjective, in many cases formed by...
4Old English-iġ-y, -ic
5Proto-West Germanic-gForms adjectives from nouns and verbs with a...
6Proto-Germanic-gaz-y
7Proto-Indo-European-ḱos-y, -ic

via English dunder

StepLanguageWordMeaning
1EnglishdunderThe lees or dregs of cane juice, used in the...
2EnglishunderIn or at a lower level than; As a subject of;...
3Middle Englishunderunder
4Old Englishunderunder, beneath
5Proto-Germanicunderamong, between; under, beneath; under
6Proto-Indo-Europeanh₁entérbetween
7Proto-Indo-Europeanh₁enin; in, inside

Words derived from “dunderhead

Every word from Proto-Indo-European -ḱosEvery word from English -yEvery word from Old English -iġ