I recently received an antique silver bracelet with two green marble shamrocks and the word "aroon" on it. Does anyone know the meaning of this word?

The Irish phrase "A rún" (pronounced "a roon") is a term of affection, roughly meaning "My dear" or "My loved one".

Risteárd.

"Aroon" is one of those English-language cloaks that people put on words and phrases from Irish. It would be written "a rún" in Irish and means "sweetheart", "love", "dear": a beloved person in general. It's in the vocative case (that is, direct address) and the equivalent in English would most likely be "my sweetheart" or "my dear".

The Irish motifs on things from greeting cards to jewelry show variation and continuity over the years. The bracelet sounds interesting. Go maire tú é. (May you live to wear it -- a traditional thing to say to someone who has just come by something new to wear.)

Gabh mo leithscéal, a Ristéard. Ní fhaca mé an freagra seo agat go dtí gur chuir mé mo fhreagra féin 'na bhealaigh.