Acymay
Here's how it works:
1. Move the first letter to the end: "Macy" becomes "acyM"
2. Add "ay": "acyM" becomes "Acymay"
Acymay
Here's how it works:
1. Move the first letter to the end: "Macy" becomes "acyM"
2. Add "ay": "acyM" becomes "Acymay"