Inclement is from Latin inclemens ('harsh, unmerciful'), from in- ('not') + clemens ('mild, gentle, merciful'), of uncertain ultimate origin. Important recorded forms include inclemens (Latin) and clemens (Latin). Morphologically, the word is a built form whose named elements carry part of the historical sense. Its deeper history remains uncertain, with proposed links left as possibilities rather than a single settled derivation. The current sense covers unpleasantly cold, wet, or stormy, of weather. The wider family includes derived forms such as inclemently and inclemency and related words such as clement and clemency.