avigorar, esforçar, potencializar, reforçar, revigorar, vigorar
apedrar, calejar, coscorar, curtir, empedernir, empedrar, encalejar, encordoar, endurar, endurecer, endurentar, enquistar, enresinar, enrijar, enrilhar, incrustar, obdurar, ossificar, pedrar, petrificar, sezoar
