Answer
This is an official answer by QuranicNames.com Staff
Mirha, spelled مرهاء in Arabic and pronounced (MI)ddle +p(R)ay + (HA)rd, is an Arabic word that means nimble, agile, fast. It is not a Quranic name but since the meaning is good you can use it as a name. The word Mirha is a feminine word for this reason it is more appropriate to use it for girls.