lithe

The word 'lithe' originates from the Old English 'līþe', meaning gentle, meek, or mild. This Old English term can be traced back to the Proto-Germanic 'linþjaz', which carried the sense of flexible or pliant. The core semantic thread from its ancient roots to its modern usage is one of easy, graceful bending without resistance. Over time, the meaning specialized from a general sense of mildness to specifically describe a physical quality of flexible, effortless grace, particularly in movement or bodily form.

The word 'lithe' is a simplex word derived from a single Old English root. It is not productively composed of smaller, independent morphemes in modern English.