lordosis

The term 'lordosis' is a modern medical coinage directly constructed from Greek components to describe a specific anatomical condition. The root lordos, meaning "bent backwards," was used in ancient Greek to describe physical postures. Combined with the abstract noun-forming suffix -osis, which indicates a state or condition, the word literally translates to "a condition of being bent backwards." This etymological logic is preserved in its modern clinical usage, where it precisely denotes an abnormal inward curvature of the vertebral column, contrasting with the outward curvature of kyphosis. The word's journey is a direct borrowing into scientific Latin and then into English, maintaining its original descriptive precision.

Structure: lord (bent) + osis (condition) lord: From Greek lordos, meaning "bent backwards." It functions as the core root describing the specific posture. osis: A suffix of Greek origin used in medical and scientific terminology to denote a state, condition, or process, often an abnormal one.