FOR'TIFY, verb transitive 1. To surround with a wall, ditch, palisades or other works, with a view to defend against the attacks of an enemy; to strengthen and secure by forts, batteries and other works of art; as, to fortify a city, town or harbor. 2. To strengthen against any attack; as, to fortify the mind against sudden calamity. 3. To confirm; to add strength and firmness to; as, to fortify an opinion or resolution; to fortify hope or desire. 4. To furnish with strength or means of resisting force, violence or assault. FOR'TIFY, verb intransitive To raise strong places.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI