verve

noun2

1. •
   Enthusiasm, rapture, spirit, or vigour, especially of imagination such as that which animates an artist, musician, or writer, in composing or performing.

   • His hands were strong and elegant; his experience of life evidently varied; his speech full of pith and verve; his manners forward, but perfectly presentable. — 1879
2. •
   (no longer used) A particular skill in writing.

   • If he be above Virgil, and is resolv'd to follow his own Verve (as the French call it,) the Proverb will fall heavily upon him; Who teaches himself, has a Fool for his Master. — 1697