-ee

from The Collaborative International Dictionary of English v.0.48

-ee \-ee\ [Formed on the F. p. p. ending -['e], masc.]
   A suffix used, chiefly in law terms, in a passive
   signification, to indicate the direct or indirect object of
   an action, or the one to whom an act is done or on whom a
   right is conferred; as in assignee, donee, alienee, grantee,
   etc. It is correlative to -or, the agent or doer. Eek