Sunstroke (noun)

1. A form of heat stroke caused by prolonged exposure to the sun.
2. A medical condition caused by prolonged exposure to the sun, characterized by symptoms such as headache, dizziness, and dehydration.

Origin:

From the noun sun, from old english sunne, from proto-germanic *sunnǭ and stroke, from old english strǣc, from proto-germanic *strakijaz.

Examples:

1. He suffered from sunstroke after spending the whole day at the beach.
2. The risk of sunstroke increases with prolonged exposure to the sun.
3. The symptoms of sunstroke include headache, dizziness, and dehydration.
4. Sunstroke can be prevented by staying in the shade and drinking plenty of water.
5. The sunstroke was caused by a combination of high temperatures and high humidity.