Where does “trothplighted” come from?

trothplighted (English) comes from English troth, from Middle English troth, from Old English trēowþ, from Proto-Germanic triwwiþō, from Proto-Indo-European dóru, from Proto-Indo-European drew- — hard, firm, strong, solid; hard, fast; tree.

trothplighted (English): Having pledged one's troth; engaged; promised;...

Definitions

  1. Having pledged one's troth; engaged; promised;...

Ancestry of “trothplighted”, step by step

trothplighted traces back through two separate lines of ancestry.

via English troth

StepLanguageWordMeaning
1EnglishtrothAn oath, pledge, or promise; Truth; something...
2Middle Englishtroth
3Old Englishtrēowþtruth, good faith, honour
4Proto-Germanictriwwiþōpromise, contract
5Proto-Indo-Europeandórutree
6Proto-Indo-Europeandrew-hard, firm, strong, solid; hard, fast; tree

via English plighted

StepLanguageWordMeaning
1Englishplightedsimple past tense and past participle of plight
2EnglishplightA dire or unfortunate situation; A condition or...
3Middle Englishplightrisk, danger; risky promise, peril
4Old Englishplihtdanger, risk
5Proto-West Germanicplihticare, maintenance, diligence; responsibility,...
6Proto-West Germanicplehanto stand up for; to be responsible for
Every word from Proto-Indo-European drew-