Definition of christened:
(v) :
(transitive, by extension) To name.
(v) :
(colloquial) To use for the first time.
(v) :
(transitive) To perform the religious rite of baptism upon; to baptize.
(v) :
(informal) To douse or wet with blood, urine, tears, or other liquid.
(v) :
(obsolete) To Christianize.
(adj) :
Obsolete form of Christian. [(not comparable) Of, like or relating to Christianity or Christians.]