clear-sighted

The compound adjective 'clear-sighted' is a relatively modern English formation, built from native Germanic and Romance elements. The first element, 'clear', originates from Latin 'clarus', which conveyed brightness and acoustic clarity, evolving in English to denote mental or visual sharpness. The second element, 'sight', is a deeply rooted Germanic word for vision, descending from the Proto-Indo-European root sekʷ- meaning "to see" or "to follow." When combined with the adjectival suffix '-ed', the literal meaning "having clear vision" was formed. Over time, this concrete meaning seamlessly extended into the metaphorical realm, describing someone whose perception and judgment are sharp and unobstructed, much like keen physical eyesight.

Structure: clear (unobstructed) + sight (vision) + ed (adjective suffix) - clear: From Middle English 'clere', from Old French 'cler', from Latin 'clarus' (clear, bright, famous). In this compound, it functions as an intensifier meaning "unobstructed" or "sharp." - sight: From Middle English 'sight', from Old English 'sihþ/gesihþ' (something seen, vision, faculty of sight), from Proto-Germanic. It functions as the core noun meaning "vision" or "the act/ability of seeing." - ed: A common English suffix forming adjectives from nouns or other adjectives, indicating "having the quality of."