look up any word, like sex:
 
2.
It means to date or go out with; to have relations with.
He appears to be infactuated with Tawnya.
by LeaLea May 01, 2005
 
1.
to be thoroughly engrossed with facts, data, the raw materials of anything, the actual stuff
He was an amateur eytmologist, biologist, linguist and a host of other -ists. There was no limit to the things he could be infactuated with.
by Daniel Wetmore January 24, 2010