The Collaborative International Dictionary of English v.0.48:

Dekaliter \Dek"a*li`ter\, n.
   Same as Decaliter.
   [1913 Webster]

WordNet (r) 3.0 (2006):

dekaliter
    n 1: a metric unit of volume or capacity equal to 10 liters
         [syn: dekaliter, dekalitre, decaliter, decalitre,
         dal, dkl]