Verb

(es)

To make stable or firm; to confirm.

*

To form; to found; to institute; to set up in business.

* , (w) 6:18

But with thee will I establish my covenant; and thou shalt come into the ark, thou, and thy sons, and thy wife, and thy sons' wives with thee.

To appoint or adopt, as officers, laws, regulations, guidelines, etc.; to enact; to ordain.

* {{quote-book, year=1922, author=(Ben Travers), title=(A Cuckoo in the Nest)

, chapter=4 citation , passage=By some paradoxical evolution rancour and intolerance have been established in the vanguard of primitive Christianity. Mrs. Spoker, in common with many of the stricter disciples of righteousness, was as inclement in demeanour as she was cadaverous in aspect.}}

To prove and cause to be accepted as true; to establish a fact; to demonstrate.

Verb

(en-verb)

To increase the defenses of; to strengthen and secure by military works; to render defensible against an attack by hostile forces.

To impart strength or vigor to.

* Sir Walter Scott

Pride came to the aid of fancy, and both combined to fortify his resolution.

*

To increase the effectiveness of, as by additional ingredients.

* 1979 , Kiplinger's Personal Finance (volume 33, number 7, July 1979, page 47)

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.