principium /prin-sipˈi-əm or pring-kipˈi-ŭm/

1. A beginning
2. A first principle or element
3. The general's quarters in a Roman camp

principˈial adjective

Elementary

• arefied
• arefies
• arefy
• arefying
• areg
• arena
• arenaceous
• Arenaria
• arenas
• arena stage
• arena stages
• arenation
• arenations
• arenicolous
• aren't
• areographic
• areographies
• areography
• areola
• areolae
• areolar
• areolas
• areolate
• areolated
• areolation