Nouns

(n)goad, goading, prod, prodding, urging, spur, spurringa verbalization that encourages you to attempt something“the ceaseless prodding got on his nerves”
(n)spur, spine, acanthaany sharply pointed projection
(n)spurtubular extension at the base of the corolla in some flowers
(n)spur, gada sharp prod fixed to a rider's heel and used to urge a horse onward“cowboys know not to squat with their spurs on”
(n)branch line, spur track, spura railway line connected to a trunk line

Verbs

(v)spurincite or stimulate“The Academy was formed to spur research”
(v)spur, goadgive heart or courage to
(v)spurstrike with a spur
(v)spurgoad with spurs“the rider spurred his horse”
(v)spurequip with spurs“spur horses”