I revel in the simplicity of this word, and enjoy its rarity as well!
E`lan´
n. 1. Ardor inspired by passion or enthusiasm.
Webster’s Revised Unabridged Dictionary, published 1913 by C. & G. Merriam Co.
1. élan – a feeling of strong eagerness (usually in favor of a person or cause); “they were imbued with a revolutionary ardor”; “he felt a kind of religious zeal”
2. élan – distinctive and stylish elegance; “he wooed her with the confident dash of a cavalry officer”; “she conveys an aura of elegance and gentility”
3. élan – enthusiastic and assured vigor and liveliness; “a performance of great élan and sophistication”
Synonyms: ardor, ardor, zeal, avidity, avidness, eagerness, keenness – a positive feeling of wanting to push ahead with something, sprightliness, liveliness, spirit, life – animation and energy in action or expression; dash, panache, flair, style, elegance – a refined quality of gracefulness and good taste;
Source cited: http://www.thefreedictionary.com/Elan