1. Five
   - penta-

Encyclopedia: Quinque-

• square inch
• square knot
• square leg
• square matrix
• square meal
• square measure
• square meter
• square metre
• square mile
• square number
• square nut
• square off
• square one
• square root
• square sail
• square shooter
• square toes
• square up
• square yard
• square-bashing
• square-built
• square-dance music
• square-jawed
• square-rigged
• square-rigger