Where does “trueness” come from?

trueness (English) comes from Middle English treunesse, from Old English trēownes, from Old English trēow, from Proto-West Germanic treu, from Proto-Germanic trewą, from English doru, from Ancient Greek δόρυ, from Proto-Hellenic dóru — firm, solid; wood; be firm, hard, solid.

trueness (English): The characteristic of being true; Loyalty;...

Definitions

  1. The characteristic of being true; Loyalty;...

Ancestry of “trueness”, step by step

trueness traces back through two separate lines of ancestry.

via Middle English treunesse

StepLanguageWordMeaning
1Middle Englishtreunesse
2Old Englishtrēownesfidelity, faithfulness, trueness, loyalty
3Old Englishtrēowtree, wood, timber, beam, log, stake, stick,...
4Proto-West Germanictreutree; wood
5Proto-Germanictrewątree
6EnglishdoruAlternative form of dory
7Ancient Greekδόρυwood, tree, stem; spear shaft, spear, lance,...
8Proto-Hellenicdórutree
9Proto-Indo-Europeandórutree
10Proto-Indo-Europeanderu-firm, solid; wood; be firm, hard, solid

via English True

StepLanguageWordMeaning
1EnglishTrue
2Middle EnglishtreoweAlternative form of trewe
3Old Englishtrēowetrusty, faithful
4Proto-Germanictriwwiztrue; faithful
5Proto-Indo-Europeandrew-hard, firm, strong, solid; hard, fast; tree
Every word from Proto-Indo-European deru-Every word from Proto-Indo-European dóruEvery word from Proto-Hellenic dóru