C17: from Latin: whiteness (of the skin), from pallēre to be pale1
pallor for learners of EnglishPowered by COBUILD (pæləʳ)
If you refer to the pallor of someone's face or skin, you mean that it is pale and unhealthy. [+ of] ⇒ The deathly pallor of her skin had been replaced by the faintest flush of color. ⇒ My face had a greenish pallor.