The Collaborative International Dictionary of English v.0.48:

Encomiastic \En*co`mi*as"tic\, Encomiastical
\En*co`mi*as"tic*al\, a. [Gr. ?.]
   Bestowing praise; praising; eulogistic; laudatory; as, an
   encomiastic address or discourse. -- En*co`mi*as"tic*al*ly,
   adv.
   [1913 Webster]