élan

noun2

1. •
   Spirit; zeal; ardor.

   • Sam, carried away by the élan of the performance, was unable to resist joining them. — 1916
2. •
   Grace; style (especially apparently effortless).

   • Mary Ellen had never seen any woman, with the exception of Abigail, take such an active role in the company of men, though Abigail did it with élan and never directly or conspicuously. — 2001

noun1

1. •
   Acronym of enormous Lyman-alpha nebula.