Where does “oathbreaker” come from?

oathbreaker (English) comes from English breaker, from English -er, from Middle English -er, from Old French -er, from Latin -āre, from Proto-Italic -āō, from Proto-Indo-European -eh₂yéti, from Proto-Indo-European -yéti — he, she.

oathbreaker (English): Someone who breaks an oath

Definitions

  1. Someone who breaks an oath

Ancestry of “oathbreaker”, step by step

oathbreaker traces back through two separate lines of ancestry.

via English breaker

StepLanguageWordMeaning
1EnglishbreakerSomething that breaks; A machine for breaking...
2English-erA person or thing that does an action indicated...
3Middle English-eragentive suffix; agent noun suffix
4Old French-erAlternative form of -ier, verbal suffix;...
5Latin-ārefirst conjugation
6Proto-Italic-āōForms primarily denominative verbs
7Proto-Indo-European-eh₂yétiCreates iterative/ frequentative/ intensive...
8Proto-Indo-European-yétiCreates intransitive, often deponent,...
9Proto-Indo-Europeanyé-
10Chichewaiyehe, she

via English oath

StepLanguageWordMeaning
1EnglishoathA solemn pledge or promise, appealing to a deity,...
2Middle Englishooth
3Old Englishāþoath
4Proto-West Germanicaiþoath
5Proto-Germanicaiþazoath
6Proto-Indo-Europeanoyt-
Every word from Chichewa iyeEvery word from English -erEvery word from Proto-Indo-European -yéti