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v. for·ti·fied, for·ti·fy·ing, for·ti·fies
To make strong, as:
a. To strengthen and secure (a position) with fortifications.
b. To reinforce by adding material.
c. To impart physical strength or endurance to; invigorate.
d. To give emotional, moral, or mental strength to; encourage: Prayer fortified us during our crisis.
e. To strengthen or enrich (food, for example), as by adding vitamins.
To build fortifications.

[Middle English fortifien, from Old French fortifier, from Late Latin fortificāre : Latin fortis, strong; see bhergh- in Indo-European roots + Latin -ficāre, -fy.]

for′ti·fi′a·ble adj.
for′ti·fi′er n.
for′ti·fy′ing·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in classic literature ?
"I'll take another glass of sherry, Ladislaw," he said, with an easy air, to Will, who was close behind him, and presently handed him the supposed fortifier. It was ill-chosen; for Mr.
De meme, il se serait agi de liberer, de fortifier et surtout d'autonomiser la pratique partisane !
They said: "Currently it is standard practice across the UK to provide exclusively breastfed pre-term babies with a protein and mineral-packed supplement, known as breast milk fortifier, during their time on neonatal units to complement mothers' breast milk while it is delivered via a nasogastric tube.
When enteral feeding reached 100 mL/kg/day, PN was discontinued, and 1.1 g of EoprotinA(r) (Aptamil-Milupa breast milk fortifier) was added to every 25 mL of breast milk until the 40th week.
Breast milk was expressed using a personal electric breast pump and was not combined with any additives such as fortifier or infant formula.
Lae1/4aoadhUu[c]sion des divers courants du Mouvement national Uu lae1/4aoappel du 1er novembre a permis au FLN de se fortifier et de mobiliser toutes les Uu[c]nergies.
"One mother had a premature baby and she used my milk as a fortifier. There's so much you can do with it.
When used as part of an EHMD, Prolacta's neonatal nutritional products are clinically proven to improve health outcomes and reduce hospital costs for critically ill, extremely premature infants weighing between 500-1,250g (1 lb 1 oz - 2 lbs 12 oz) at birth, in the NICU, as compared to cow milk-based fortifier or cow milk-based preterm formula.
• His transition from the blood industry to Prolacta, which developed of the world's first human milk-based human milk fortifier
Fifty-three extremely premature infants (mean gestational age, 27.6 weeks) whose mothers did not provide milk were randomly assigned to receive pasteurized donor human milk and human--milk based human milk fortifier or cow's--milk based preterm formula.