Found:

Theta-absorption

SYNTAX: some morpho-syntactic elements have the capacity of absorbing a theta-role assigned by the verb (stem) to which they are attached, with the effect that that theta-role can not be assigned to its regular position. EXAMPLE: Passive morphology is an example, and clitics have been argued to absorb a theta-role as well.

LIT.	Jaeggli, O. (1986a) Spencer, A. (1991)