Answer: fortify

AnswerCrossword Clue
FORTIFYStrengthen
FORTIFYArm
FORTIFYBeef up
FORTIFYMake stronger, as a building
fortifyadd mental or moral strength to encourage fortified by prayer
fortifygive physical strength, courage, or endurance to fortified by a hearty meal
fortifystrengthen and secure (as a town) by forts or batteries
fortifyto make strong as
fortifyadd material to for strengthening or enriching fortified milk
fortifyto strengthen against attack
fortifyerect fortifications