Enable

To make able (to do, or to be, something); to confer sufficient power upon; to furnish with means, opportunities, and the like; to render competent for; to empower; to endow.

1711, October 13, Joseph Addison, The Spectator, number 195Temperance gives Nature her full play, and enables her to exert herself in all her force and vigor.
2013-06-29, A punch in the gut, Mostly, the microbiome is beneficial. It helps with digestion and enables people to extract a lot more calories from their food than would otherwise be possible. Research over the past few years, however, has implicated it in diseases from atherosclerosis to asthma to autism.

To allow a way out or excuse for an action.
His parents enabled him to go on buying drugs.