sunscreen (n.)youdaoicibaDictYouDict[sunscreen 词源字典]
1738 as an object to block the sun's rays, from sun (n.) + screen (n.). As a type of lotion applied to the skin, by 1954.[sunscreen etymology, sunscreen origin, 英语词源]
sunset (n.)youdaoicibaDictYouDict
late 14c., from sun (n.) + set (v.). Perhaps from a Middle English subjunctive such as before the sun set. Old English had sunnansetlgong "sunset," while sunset meant "west." Figurative use from c. 1600. To ride off into the sunset (1963) is from the stereotypical ending of cowboy movies.
sunshade (n.)youdaoicibaDictYouDict
1842, from sun (n.) + shade (n.). Old English had sunsceadu "veil."
sunshine (n.)youdaoicibaDictYouDict
mid-13c., from sun (n.) + shine (n.). Old English had sunnanscima "sunshine;" while sunscin meant "a mirror, speculum." Meaning "happy person who brightens the lives of others" is from 1942. Sunshine law in reference to U.S. open-meeting legislation is recorded from 1972, from the notion of shining the light of public access on deliberations formerly held behind closed doors. Related: Sunshiny.
sunspot (n.)youdaoicibaDictYouDict
also sun-spot, 1849, in astronomy, from sun (n.) + spot (n.). Earlier "a spot on the skin caused by exposure to the sun" (1818).
sunstroke (n.)youdaoicibaDictYouDict
1807, from sun (n.) + stroke (n.); translating French coup de soleil. Related: Sun-stricken; sunstruck.