An example of proselytize is when you explain Christian theology to try to convince your Agnostic friend to join the Christian faith.
transitive verb-·ized·, -·iz·ing
- to try to convert (a person), especially to one's religion
- to persuade to do or join something, especially by offering an inducement
verbpros·e·ly·tized, pros·e·ly·tiz·ing, pros·e·ly·tiz·es
- To attempt to convert someone to one's own religious faith.
- To attempt to persuade someone to join one's own political party or to espouse one's doctrine.
(third-person singular simple present proselytizes, present participle proselytizing, simple past and past participle proselytized)
proselyte +"Ž -ize