I was sure that I had come across a word, which I have now forgotten, that describes someone taking on a characteristic that isn't a natural one but is a consequence of their environment.
An example might be that of a person who isn't, by nature, a driven, deadline-oriented [Type A] person, but has become so because they became a newspaper editor. In such a circumstance one would say that
The person is __________ a Type A person.
Reference to reverse thesauruses hasn't helped, which means that I have either been using the wrong search terms or the word I'm looking for doesn't exist.