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

• heliotypic
• heliotypies
• heliotypy
• Heliozoa
• heliozoan
• heliozoic
• helipad
• helipads
• heliport
• heliports
• heliscoop
• heliscoops
• heli-skier
• heli-skiers
• heli-skiing
• helispheric
• helispherical
• helistop
• helistops
• helium
• heliums
• helium speech
• helix
• helixes
• he'll