"restore vigor" is correct and usable in written English.
You can use the phrase to refer to anything that regains energy, vitality, or enthusiasm. For example, "The warm weather seemed to restore the plants' vigor, and they were blooming again within a few days."
These days, it is intended to help restore vigor to the economy, with mixed results so far.
The administration portrays its mortgage program as a crucial piece of its broader effort to restore vigor to the economy.
While the political impediments to action remain formidable, the government could quickly do a great deal to add paychecks and restore vigor to the economy.
Shortly after the turn of the millennium, the market for novelizations began to dry up; even a spate of new video-game novelizations could not restore vigor to what had once been a great (if not respected) sector of the publishing industry.
This medicine is specifically not intended to save lives or to restore youthful vigor, but to ease the inevitable irreversible decline of the very old.
But the writer thinks that perhaps Sagan's fictitious world of sex and sophistication may have helped in some small way to restore the vigor of France after WWII.
Or you can look at a place that doesn't quite fall into either category, a survivor that hasn't thrived, now relaxing its guard to restore its vigor.
So what if Kurt Rambis or Johnny Davis could restore some vigor and help the team net five more victories; they would come at the expense of precious pingpong balls.
At the end of a weekend of festivalia, restore your vim and vigor with The New Yorker's poetry editor, Paul Muldoon, who will host an afternoon poetry reading on Sunday, October 3rd.
By Ian Segal September 27, 2010 At the end of a weekend of festivalia, restore your vim and vigor with The New Yorker's poetry editor, Paul Muldoon, who will host an afternoon poetry reading on Sunday, October 3rd.
