nervy (nẽrvˈy̆), a. [Compar. nervier (nẽrvˈĭ‑ẽr); superl. nerviest.]
1. Strong; sinewy. “His nervy knees.” Keats.
[1913 Webster]
2. Offensively bold or presumptuous; insolent; cheeky; pushy.
[PJC]
3. Exhibiting courage or daring; bold; plucky.
[PJC]
4. Nervous6; apprehensive; edgy1.
[PJC]