ăd-augesco — Lewis & Short
ăd-augesco, ĕre,
I 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.