Where does “doublehearted” come from?

doublehearted (English) comes from English hearted, from Middle English herted, from Middle English herte, from Old English heorte, from Proto-West Germanic hertā, from Proto-Germanic hertô, from Proto-Indo-European ḱḗr — heart.

doublehearted (English): Having a false heart; deceitful; treacherous

Definitions

  1. Having a false heart; deceitful; treacherous

Ancestry of “doublehearted”, step by step

doublehearted traces back through two separate lines of ancestry.

via English hearted

StepLanguageWordMeaning
1Englishheartedsimple past tense and past participle of heart;...
2Middle EnglishhertedHaving a specified disposition, emotion, or...
3Middle EnglishherteThe heart; One's inner self; the mind or...
4Old Englishheorteheart
5Proto-West Germanichertāheart
6Proto-Germanichertôheart
7Proto-Indo-Europeanḱḗrheart

via English doublé

StepLanguageWordMeaning
1EnglishdoubléA compound attack that deceives the opponent's...
2Frenchdoublédouble, brace, pair; double; doublé
3Middle Frenchdouble
4Old Frenchdobledouble
5Latindūplusdouble (twice as much, or as big)
6Proto-Italic*duplosdouble
Every word from Proto-Indo-European ḱḗr