Lewis & Short

ăd-ăquo, āvi, ātum, 1, v. a. [aqua], to bring water to, to give to drink (postAug.), Vulg. Gen. 24, 46; 29, 10.
Of plants: amygdalas, Plin. 17, 10, 11, § 64: vites, Pall. 3, 33.
* In pass.: adaquari (different from the foll.), to be brought to drink: jumentum, Suet. Galb. 7.