You searched for: “fortifier
fortifier (s), fortifiers (pl) (nouns)
1. Anyone who strengthens a someplace with defensive works in order to protect it against attack: "The administer of the city near the coast was given credit for having been a great fortifier of the area for the safety of its citizens."
2. Those who strengthen or invigorate others mentally or physically: "The physical educators were known as fortifiers who improved the health and intellectual well-being of their students."