Wordnet 3.0
NOUN (1)
1. 
 one who tries; 
[syn: trier, attempter, essayer]
The Collaborative International Dictionary of English v.0.48:
Essayer \Es*say"er\, n.
   One who essays. --Addison.
   [1913 Webster]
WordNet (r) 3.0 (2006):
essayer
    n 1: one who tries [syn: trier, attempter, essayer]