lotion

The word "lotion" originates from the Latin verb 'lavare', meaning "to wash." This root gave rise to the Latin noun 'lotio', which specifically denoted the act of washing or a washing liquid. Entering English via Old French in the late 14th century, the term initially referred to a medicinal wash or liquid preparation for cleansing wounds. Over time, its application broadened from purely medical cleansing to encompass cosmetic and protective liquids applied to the skin, reflecting its enduring connection to the core concept of washing or applying a liquid.

Structure: lot (wash) + ion (noun suffix) - lot: From Latin 'lotio' (a washing), from 'lavare' (to wash). - ion: A suffix forming nouns of action or condition, from Latin '-ionem'.