two-faced (English) comes from English two, from Middle English two, from Old English twā, from Old English twēġen, from Proto-West Germanic twai-, from Proto-Germanic twai, from Proto-Indo-European dwóh₁ — two.
two-faced (English): having two faces or plane surfaces; deceitful,...
Definitions
having two faces or plane surfaces; deceitful,...
Ancestry of “two-faced”, step by step
two-faced traces back through two separate lines of ancestry.