köken: Learned borrowing from Ancient Greek ἀμφίβολος (amphíbolos). For sense "questionable", semantic loan from French douteux. Morphologically, αμφι- (amfi-) + stem βολ- for which see αμφιβάλλω (amfivállo, “Ι doubt”) - αμφιβολία f (amfivolía) & βάλλω (vállo) - βολή (volí) + suffix -ος (-os).
Moving in two directions alternately, vibrating to and fro, fluctuating, wavering · Vacillating in mind, wavering, uncertain, doubting, doubtful, dubious, irresolute, undetermined · Precarious, dangerous, critical, difficult, adverse, doubtful, in doubt
zıt: fixus, prōmptus, indubius
köken: Somewhat uncertain, but likely derived from *dubos (“in doubt”, adj.), from Proto-Italic *du(i)βwos, from Proto-Indo-European *dwi- (“two-”) + *bʰuH- (“to be”), with the same latter element as in superbus, probus (less likely tribus), in this case parallel to Ancient Greek διφυής (diphuḗs, “of two shapes or natures”). Or less likely, directly from Proto-Indo-European *dubʰi- (“on two sides”). For…
köken: Etymology tree Latin maleder. Old French mal- Middle French mal- French mal-bor. Esperanto mal- Esperanto fidinda Esperanto malfidinda From mal- (“opposite of”) + fidinda (“trustworthy”).