Where does “elvendom” come from?

elvendom (English) comes from English DOM, from English dominance, from English -ance, from Middle English -aunce, from Old French -ance, from Latin -ia, from Latin -ius, from Proto-Italic -jōs — Creates adjectives from noun or verb stems.

Ancestry of “elvendom”, step by step

elvendom traces back through two separate lines of ancestry.

via English DOM

StepLanguageWordMeaning
1EnglishDOMInitialism of date of marriage; Initialism of...
2EnglishdominanceThe state of being dominant; of prime importance;...
3English-anceAdded to an adjective or verb to form a noun...
4Middle English-aunceForms nouns indicating states or processes, usually from verbs or other nouns; -ance
5Old French-anceance (suffix used to form nouns)
6Latin-iaUsed to form a feminine abstract noun, usually...
7Latin-iusforming adjectives from nouns; nominative neuter...
8Proto-Italic-jōsForms comparative adjectives
9Proto-Indo-European-yósCreates adjectives from noun or verb stems

via English elven

StepLanguageWordMeaning
1EnglishelvenA female elf, a fairy, nymph; any elf; Belonging...
2Middle EnglishelvenA elf, a fairy, nymph
3Old EnglishelfenAlternative form of ielfen
4Old Englishelf
5Proto-Germanicalbizelf, fairy
6Proto-Indo-Europeanalbʰóswhite
Every word from Proto-Indo-European -yósEvery word from Latin -iaEvery word from Latin -ius