Noah Webster
Nervous
NERVOUS, adjective
1. Strong; vigorous; as a nervous arm.
2. Pertaining to the nerves; seated in or affecting the nerves; as a nervous disease or fever.
3. Having the nerves affected; hypochondriac; a colloquial use of the word.
4. Possessing or manifesting vigor of mind; characterized by strength in sentiment or style; as a nervous historian.
NERVOUS, adjective In botany [See Nerved, No.2]