This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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v. Present participle of enthuse.

"She had even started in on psychology, enthusing, “There is so much that is fascinating!”"

enthused    enthuses    enthusing   

enthusiasm    enthusiastic    enthusiast   

rave    kindle    poetize    warm    fanaticize   

Chartreuse    Cruz    Druse    Druze    Hughes