fortify

Etymology

From Middle English fortifien, from Old French fortifier, from Latin fortificō.

verb

1. (military) To increase the defenses of; to strengthen and secure by military works; to render defensible against an attack by hostile forces.
2. (figurative) To impart strength or vigor to.
3. (wine) To add spirits to wine to increase the alcohol content.
   Sherry is made by fortifying wine.
4. (food) To increase the nutritional value of food by adding ingredients.
   Soy milk is often fortified with calcium.
   Compare the nutrition information label of a regular ready-to-eat fortified cereal with that of a presweetened brand and you'll note that, although the sweetened one's sugar content is higher, the fortification is virtually identical. 1979 July, Kiplinger's Personal Finance, volume 33, number 7, page 47