Where does “trothe” come from?

trothe (Middle English) comes from Middle English treuth, 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.

Ancestry of “trothe”, step by step

trothe traces back through 3 separate lines of ancestry.

via Middle English treuth

StepLanguageWordMeaning
1Middle Englishtreuth—
2Old Englishtrēowþtruth, good faith, honour
3Proto-Germanictriwwiþōpromise, contract
4Proto-Indo-Europeandórutree
5Proto-Indo-Europeandrew-hard, firm, strong, solid; hard, fast; tree

via Middle English treuthe

StepLanguageWordMeaning
1Middle EnglishtreutheAlternative form of trouthe; truth
2Old Englishtrēowþetruth, pledge, troth

via Middle English treouthe

StepLanguageWordMeaning
1Middle Englishtreoutheallegiance, fidelity, faithfulness, loyalty;...
Every word from Proto-Indo-European drew- →Every word from Proto-Indo-European dóru →Every word from Proto-Germanic triwwiþō →