[prof.li.gate] adj [L profligatus, fr. pp. of profligare to strike down, fr. pro- forward, down + -fligare (akin to fligere to strike); akin to Gk phlibein to squeeze] (1647) 1: completely given up to dissipation and licentiousness
2: wildly extravagant: prodigal -- prof.li.gate.ly adv
[2]profligate n (1709): a person given to wildly extravagant and usu. grossly self-indulgent expenditure