The Collaborative International Dictionary of English v.0.48:

Eschalot \Esch`a*lot"\, n. (Bot.)
   See Shallot.
   [1913 Webster]

WordNet (r) 3.0 (2006):

eschalot
    n 1: type of onion plant producing small clustered mild-flavored
         bulbs used as seasoning [syn: shallot, eschalot,
         multiplier onion, Allium cepa aggregatum, Allium
         ascalonicum]