Actually it’s an adjective meaning refreshed. The adverb would be מרענן.

Back in the ’70s, there was a vogue for unusual names; lots of hippie types named their kids “Sunshine” or “Harmony”. Among them, there were a number of celebrities who gifted their progeny with unique names; David Bowie named his son Zowie, Barbara Hershey and David Carradine named theirs Free, and Abby Hoffman christened his boy America. Today, Zowie Bowie is called Duncan Jones, Free Carradine is Paul, and America Hoffman is named Allen.

Back in 1985, when I changed my last name (gave myself a fatherectomy), there was a long list of people on the court docket who were also changing their names. Sunshine was becoming Susan, Harmony was changing to Helen, etc. There is little doubt that 20 years from now, little Hashtag will be forking over a handful of cash to the courthouse to become Hayley or Hannah or some other name.