ensorcell \en-SOR-suhl\, transitive verb:
To enchant; to bewitch.
That was a very serious accusation to make, and Gruffydd realized he'd gone too far; he had no proof whatsoever that Joanna had ever used the Black Arts to ensorcell his father.
-- Here be Dragons, Sharon Kay Penman
Ensorcell comes from Middle French ensorceler, alteration of Old French ensorcerer, from en-, intensive prefix + sorcier, "sorcerer."