IPA: /ˈpraʊdər/
KK: /praʊdər/
Feeling or showing a high opinion of oneself or one's achievements, especially in comparison to others.
She felt prouder than ever after winning the award.
Prouder → It is formed from "proud" (from Old English "prūde", meaning having a high opinion of oneself) and the suffix "-er" (meaning one who or more). The word "prouder" means one who has a greater sense of pride or a higher opinion of oneself compared to another.
Think of someone who feels a greater sense of pride — the suffix "-er" indicates that they are more proud than others.