Answer: fortifies

AnswerCrossword Clue
FORTIFIESArms.
FORTIFIESEnriches with vitamins
fortifiesIncrease the nutritive value of (food), esp. with vitamins
fortifiesStrengthen (a place) with defensive works so as to protect it against attack
fortifiesFORTIFY, to strengthen against attack
fortifiesStrengthen or invigorate (someone) mentally or physically
fortifiesStrengthen (a drink) with alcohol