ăd-augesco, ĕre, v. inch. n. [ad, intens.],
to begin to increase or augment , to grow , to thrive : neque adaugescit quidquam neque deperit inde, Lucr. 2, 296; so also Cic. poet. in Div. 1, 7 fin.
adaugēscō —, —, ere, inch.adaugeo, to grow, increase : stridor scopulorum. ...
An Elementary Latin Dictionary