"in vigor" is a valid phrase in written English.
It typically means "having full force or power" or "still active or in effect." Example sentence: "The policy remains in vigor even after the leadership transition."
What Wye Oak lacked in vigor, it made up for with the odd, unexpected grace note.
Although some of Mr. Mansfield's colleagues criticized his style as lacking in vigor, he resisted suggestions to be tougher.
Still, the letdown after the adrenaline surge cannot be entirely to blame for the gradual decline in vigor of "Spirit Control".
That journal concluded that a baseball club had "this great value at the present moment, that it is the 'school of the soldier' in vigor, endurance, and agility".
The men's class even has its fair share of women, who push themselves, stretching for the jumps, trying to match their male counterparts in vigor and strength.
She lost 15 pounds and went through bouts of listlessness, then days full of energy, then more dips in vigor, a relentless cycle as the medication and the infection worked their course.
This is music of a more extroverted, popular character — the post-atomic lament of "Black Rain" excepted — and the Moscow Soloists dug in with vigor.
Rootstocks are known to have a wide range of effects on scion development; the rootstocks used in this work are known to confer differences in scion vigor in the vineyard.
The energy of the new studio may be echoed in a new vigor in Honda's designs for the United States.
Kaiser, who is in full vigor, has a hundred offspring officially recognized in the Army's records.
The drop in GE below average signals a decrease in tree vigor and a possible imbalance between stem growth and leaf area.
