Where does “widowdom” come from?

widowdom (English) comes from English widow, from Middle English widwe, from Old English widuwe, from Proto-West Germanic widuwā, from Proto-Germanic widuwǭ, from Proto-Indo-European h₁widʰéwh₂, from Proto-Indo-European h₁weydʰh₁-, from Proto-Indo-European dwi- — two.

Ancestry of “widowdom”, step by step

widowdom traces back through two separate lines of ancestry.

via English widow

StepLanguageWordMeaning
1EnglishwidowA person whose spouse is absent
2Middle Englishwidwewidow
3Old Englishwiduwewidow
4Proto-West Germanicwiduwāwidow
5Proto-Germanicwiduwǭwidow
6Proto-Indo-Europeanh₁widʰéwh₂widow
7Proto-Indo-Europeanh₁weydʰh₁-to separate, divide
8Proto-Indo-Europeandwi-two; apart, asunder
9Proto-Indo-Europeandwóh₁two

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
Every word from Proto-Indo-European dwóh₁Every word from Proto-Indo-European dwi-Every word from Proto-Indo-European h₁weydʰh₁-