knapskull, knapscull or knapscal /napˈskəl/ (obs Scot)

A kind of helmet

• amphetamine
• amphetamines
• amphi-
• Amphibia
• amphibian
• amphibians
• amphibious
• amphibiously
• amphibiousness
• amphibole
• amphiboles
• amphibolic
• amphibolies
• amphibolite
• amphibolites
• amphibological
• amphibologies
• amphibology
• amphibolous
• amphiboly
• amphibrach
• amphibrachic
• amphibrachs
• amphictyon
• amphictyonic