Definition of credibilize in English:
credibilize
(also credibilise)
verb ˈkrɛdɪbɪlʌɪzˈkrɛdɪb(ə)lʌɪz
with object To make credible or more credible, increase the credibility of.
Origin
Mid 19th century. From classical Latin crēdibilis credible + -ize, probably after credibilizing.