dissuade
v.to persuade someone not to do something. You use this when you give someone reasons why their plan is a bad idea.
v.to persuade someone against a particular course of action. Transitive; typically requires a direct object followed by a prepositional phrase.
“I tried to dissuade him from quitting his job.”
“The high cost of the project might dissuade the board from approving the expansion this year.”
“Despite her parents' attempts to dissuade her from pursuing a career in the arts, she remained steadfast in her commitment to her studies.”
The verb is transitive and almost always takes the preposition 'from' followed by a gerund or noun phrase.
Unlike 'persuade', which takes a 'to-infinitive', 'dissuade' requires 'from' plus the '-ing' form.
From Middle French dissuader, from Latin dissuādeō (“I urge differently”, “I advise against”, “I dissuade”), from dis- (“away from”, “asunder”) + suādeō (“I recommend”, “I advise”, “I urge”).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.