rhapsodize

To speak with exaggerated or rapturous enthusiasm (about, (up)on or over something).BritishEnglishOxford

• The evergreen! How beautiful, how welcome, how wonderful the evergreen! […] You will think me rhapsodizing; but when I am out of doors, especially when I am sitting out of doors, I am very apt to get into this sort of wondering strain.
• How can one rhapsodise over a view when surrounded by beer-stained tables? How lose one’s self in historical reverie amid the odour of roast veal and spinach?

To say (something) with exaggerated or rapturous enthusiasm.BritishEnglishOxford

• “It’s a long time since I tasted such a borshtch! Simply a vivifier! It melts in every limb!”" he kept rhapsodizing, between mouthfuls. “It ought to be sent to the Chicago Exposition. The missess would get a medal.”
• “Listen, my pearl,” he rhapsodized. “I have money now and you shall have dresses like rainbows, a gold tiara and slave girls to wait on you […]”

To recount or describe (something) as a rhapsody, or in the manner of a rhapsody.BritishEnglishOxford

• The great poetry of the opening chapter of Ulysses […] amplifies and rhapsodizes the world with an unlooked-for accuracy and transport.

To perform a rhapsody.BritishEnglishOxford

• […] Carolan, the last of the Irish bards, rhapsodized in the halls of the O’Connors so lately as the year 1730.