köken: From Middle High German ungloube, ungeloube, from Old High German ungiloubo, from Proto-West Germanic *ungalaubō, equivalent to un- + Glaube. Cognate with Dutch ongeloof, Saterland Frisian Uungloowe, Old English unġelēafa (whence English unbelief).
köken: Etymology tree Latin incredulus Proto-Indo-European *-teh₂ Proto-Indo-European *-ts Proto-Indo-European *-teh₂ts Proto-Italic *-tāts Latin -tās Latin incrēdulitās From incredulus + -tās.
köken: Etymology tree Latin maleder. Old French mal- Middle French mal- French mal-bor. Esperanto mal- Esperanto kredeco Esperanto malkredeco From mal- + kredeco (“belief”).