1) Add alcohol to 2) Add nutrients to 3) Alter 4) Beef up 5) Change 6) French word used in English 7) Make strong or stronger 8) Modify 9) Strengthen 10) To increase the defenses of Found on https://www.crosswordclues.com/clue/fortify
• (v. t.) To add strength to; to strengthen; to confirm; to furnish with power to resist attack. • (v. i.) To raise defensive works. • (v. t.) To strengthen and secure by forts or batteries, or by surrounding with a wall or ditch or other military works; to render defensible against an attack by hostile forces.Fortify: words in the d... Found on http://thinkexist.com/dictionary/meaning/fortify/
For'ti·fy transitive verb [ imperfect & past participle Fortified ; present participle & verbal noun Fortifying .] [ French fortifier , Latin fortificare ; fortis strong + -ficare (in comp.) to make. See ... Found on http://www.encyclo.co.uk/webster/F/66
fortify 1. To make a place less susceptible to attack by building or creating defensive structures; such as, walls, ditches, or ramparts. 2. To strengthen or reinforce the structure of something; such as, to fortify a sea wall. 3. To add further ingredients to food or drink in order to improve its flavor or add nutrients. Found on http://www.wordinfo.info/words/index/info/view_unit/872/