Baretti: A dictionary of the English and Italian languages
Nérv-o, s. m. dim. Nérv-ettíno, Nérv-étto, Nérv-icciuólo,
1. nerve, sinew; 2. pl. the whole body; 3. (fig.)power, importance; 4. every kind of gut; 5. vigour, strength, force. Il — dell'età, the prime of life; 6. help, aid, assistance; 7. the cord of a musical instrument; 8. a bowstring;9. (poet.) the bow itself.