means Covered in or producing sweat, or describing something that makes you perspire, work hard, or feel uncomfortably anxious.

from From "sweat," which traces back to Old English "swāt" (perspiration) and the verb "swǣtan." It has deep Germanic and Indo-European roots — a likely cousin of Latin "sudor" (sweat) and Sanskrit "sveda," all pointing to an ancient shared word for the salty stuff. The "-y" ending is the familiar English habit of turning a noun into an adjective (grass→grassy, sweat→sweaty).