The Collaborative International Dictionary of English v.0.48:

Garnishee \Gar`nish*ee"\, n. (Law)
   One who is garnished; a person upon whom garnishment has been
   served in a suit by a creditor against a debtor, such person
   holding property belonging to the debtor, or owing him money.
   [1913 Webster]

   Note: The order by which warning is made is called a
         garnishee order.
         [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Garnishee \Gar`nish*ee"\, v. t. [imp. & p. p. Garnisheed
   (-[=e]d); p. pr. & vb. n. Garnisheeing.] (Law)
   (a) To make (a person) a garnishee; to warn by garnishment;
       to garnish.
   (b) To attach (the fund or property sought to be secured by
       garnishment); to trustee.
       [1913 Webster]

WordNet (r) 3.0 (2006):

garnishee
    n 1: a wage earner who is served with a garnishment
    v 1: take a debtor's wages on legal orders, such as for child
         support; "His employer garnished his wages in order to pay
         his debt" [syn: garnishee, garnish]