frenemy /frenˈi-mi/

1. A friend who is also a rival
2. An enemy who masquerades as a friend

• amphibolic
• amphibolies
• amphibolite
• amphibolites
• amphibological
• amphibologies
• amphibology
• amphibolous
• amphiboly
• amphibrach
• amphibrachic
• amphibrachs
• amphictyon
• amphictyonic
• amphictyons
• amphictyony
• amphigastria
• amphigastrium
• amphigories
• amphigory
• amphimacer
• amphimacers
• amphimictic
• amphimixes
• amphimixis