60%RatingSave Gender Masculine Usage French Pronounced Pron. /ɛʁ.kyl/ [key·simplify] Meaning & HistoryExpand Links French form of Hercules. It was used by the British writer Agatha Christie for the Belgian detective Hercule Poirot, the protagonist in many of her mystery novels (debuting 1920). Related NamesFamily Tree·Details RootsHera + kleosOther Languages & CulturesIrakli(Georgian) Iraklis(Greek) Heracles, Herakles(Greek Mythology) Ercole(Italian) Hercules(Roman Mythology) Ercwlff(Welsh) PopularityDetails Last ranked #415 in 1903 France People think this name isRate·Details classic mature formal upper class strong refined strange serious Categories Agatha Christie characters, detectives, fictional characters, glory, goddess, knights of the Austrian Golden Fleece