Ah, not common maybe but it is in every dictionary I have looked at.
automatize
One entry found for automatize.
Main Entry: au·tom·a·tize
Pronunciation: o-'tä-m&-"tIz
Function: transitive verb
Inflected Form(s): -tized; -tiz·ing
Etymology: 1automatic
: to make (an action) reflexive
- au·tom·a·ti·za·tion /o-"tä-m&-t&-'zA-sh&n, -"tI-'zA-/ noun