nervy

the word "nervy" is a straightforward english formation, combining the root "nerve" with the adjectival suffix "-y". the latin root nervus originally referred to a sinew or tendon, a physical cord of strength in the body, which later extended to the anatomical nerves and, metaphorically, to mental fortitude or courage. the suffix "-y", of germanic origin, is prolific in english for creating descriptive adjectives. the modern meanings of "nervy" reflect a fascinating semantic split from this single root: one meaning ("anxious") derives from the idea of being "full of nerves" in the sense of being easily agitated, while the other ("bold") stems from the figurative sense of "nerve" as audacity or impudent courage, showcasing how a single morphological construction can evolve in opposite directions based on different interpretations of the core morpheme.

Structure: nerv (nerve) + y (adjective suffix) nerv (from latin nervus, meaning sinew, tendon, nerve; in english, it denotes the anatomical structure or, figuratively, courage or emotional strength). y (a native english suffix from old english -ig, used to form adjectives meaning "characterized by" or "full of").