1) Cheer 2) Encourage 3) Give courage 4) Give courage to 5) Give encouragement to 6) Hearten 7) Make more courageous 8) Recreate 9) To format text in boldface 10) To make bold or bolder Found on https://www.crosswordclues.com/clue/embolden
Em·bold'en transitive verb [ imperfect & past participle Emboldened ; present participle & verbal noun Emboldening .] To give boldness or courage to; to encourage. Shak. « The self-conceit which emboldened him to und... Found on http://www.encyclo.co.uk/webster/E/26