fortify Synonyms

strengthen fort spike gird secure lace build up arm beef up support sustain thicken toughened liven up toughening toughen turreted undergird strengthening stimulate restrengthen revitalize revive revivify safeguard shield shoring solace spiking steadying steel stiffening stiffen restore underpin uplift watch over brace up prop up shore up buoy up buck up reinforced remilitarization remilitarize bank up castellate incastle incastellate keep an eye on