"gather enthusiasm" is correct and can be used in written English.
It is an expression that can be used when you want to encourage someone to get excited and motivated about something, e.g. "Let's gather enthusiasm for our upcoming project!".
Fortunately, he has not seemed to gather much enthusiasm from his fellow Republican leaders.
As "End of the Century" reveals even more starkly than the recent Metallica documentary, "Some Kind of Monster," harmony among band members becomes harder to sustain as the years gather, youthful enthusiasm wanes, and personalities define themselves.
In his enthusiasm to gather and share his evidence, Grayling has neglected to turn it into a convincing case.
Geddes then traveled around the state to gather information and to arouse enthusiasm; despite his lack of technical training, he surveyed a possible route in 1808 and reported his findings to the assembly on Jan . 20 , 1809
The artists he has gathered share his enthusiasms while adding their own critiques.
When world leaders gather next weekend for meetings in Toronto, enthusiasm about China's new currency policy may be tempered by Beijing's public caution that any changes will be slow and modest.
If the current enthusiasm for gun control continues to gather momentum, the party may find it has no choice but to accept tough gun laws; the alternative would be a pasting at the polls.
But his enthusiasm for redeveloping former military bases helps to gather signatures against him.
Rarely in recent memory has the meeting of performer and role sparked the enthusiasm that gathered around Ms. LuPone's summer date with theatrical destiny.
When those leaders gather for their national party congress next year, they should ponder Mr. Clinton's message and the enthusiasm shown by the people of Hanoi for the political freedom he extolled.
