Where does “mengjafræði” come from?

mengjafræði (Icelandic) comes from Icelandic mengi, from Old Norse mengi, from Proto-Germanic managį̄, from Proto-Germanic -į̄, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

mengjafræði (Icelandic): set theory, the mathematical theory of sets

Definitions

  1. set theory, the mathematical theory of sets

Ancestry of “mengjafræði”, step by step

mengjafræði traces back through two separate lines of ancestry.

via Icelandic mengi

StepLanguageWordMeaning
1Icelandicmengia set
2Old Norsemengiquantity; crowd
3Proto-Germanicmanagį̄multitude, variety
4Proto-Germanic-į̄-th
5Proto-Indo-European-íh₂—
6Proto-Indo-European-h₂Creates collective nouns, which refer to groups...

via Icelandic fræði

StepLanguageWordMeaning
1Icelandicfræðiscience, studies; inflection of fræða: ##...
2Old Norsefrœði—
3Proto-Germanicfrōdį̄wisdom, understanding
4Proto-Germanicfrōdazwise, experienced, knowledgeable
5Proto-Indo-Europeanpret-to understand
Every word from Proto-Indo-European -h₂ →Every word from Proto-Germanic -į̄ →Every word from Proto-Germanic managį̄ →