duplicity
UK: djuːˈplɪsɪti | US: duːˈplɪsɪti
n. deceitfulness; double-dealing (the act of deliberately misleading others by concealing or distorting the truth).
n. the state of being twofold or double.
The word "duplicity" traces back to the Latin duplicitas, derived from duplex (meaning "double" or "twofold"). The root duplic- (from duo, "two") reflects the idea of doubling or splitting, while the suffix -ity forms an abstract noun indicating a state or quality. Historically, "duplicity" evolved from the literal sense of "doubleness" to the figurative meaning of "deceit," emphasizing the duality of outward appearance versus hidden intent. This shift mirrors the concept of "two-faced" behavior in human interactions.
His duplicity was revealed when both partners discovered he had promised exclusivity to each.
The spy’s success relied on skillful duplicity, maintaining a false identity for years.
Political duplicity often erodes public trust in leaders.
She saw through his duplicity when his actions contradicted his words.
The novel’s villain was a master of duplicity, charming others while plotting their downfall.