Lewis & Short

ăd-amplĭo, āre, 1, v. a. [ad, den. increase], to widen, to enlarge, to increase: adampliemus pondus, Vulg. Ital. Amos, 8, 5, where St. Jerome has augeamus: aediculam vetustate corruptam adampliavit, Inscr. Grut. 128, 5; 884, 8.