half-lidded

The word is a modern English compound adjective formed from two native elements. 'Half' originates from the Proto-Germanic halbaz, meaning "part," and has consistently denoted partiality or incompleteness in English. 'Lidded' derives from the Old English word for a cover, hlid, which is related to the Proto-Germanic hlidą, and specifically came to refer to the eyelid. The compound 'half-lidded' logically combines these elements to describe the state where the eyelids are only partially covering the eyes, a literal description that evokes specific moods or states of consciousness, such as sleepiness or relaxed allure.

Structure: half + lidded half: From Old English healf, meaning "side, part," or "one of two equal parts." In this compound, it functions as a modifier meaning "partial" or "incomplete." lidded: From Old English hlid, meaning "a cover, especially for the eye." The suffix -ed turns the noun into an adjective, meaning "having or provided with a lid or lids."