I. verb — [with obj. and often with complement] 1. administer baptism to (someone); christen • he was baptized Joshua.
2. admit (someone) into a specified Church by baptism • Mark had been baptized a Catholic.
3. give a name or nickname to • the media have baptized the murderer ‘The Babysitter’.
– origin Middle English: via Old French from ecclesiastical Latin baptizare, from Greek baptizein ‘immerse, baptize’.