THE 108 MOST PERSUASIVE WORDS IN THE ENGLISH LANGUAGE. It’s a long known fact that the secret to persuasive writing isn’t in the adjectives, it’s in the verbs. Copywriters know power verbs sell and convince. Internally, we have a list of 108 verbs that we’ve been using for a good decade, and we recently thought we should share it with proper credit to the original author. We found that.