Number Roots

a polygon having five sides

• trident
• trilogy
• pentagon
• decapod

a period of 100 years

• decapod
• centipede
• century
• pentagon

a series of three books or plays

• trilogy
• trident
• decapod
• quadruped

a ten-footed creature, such as a crab or shrimp

• quadragenarian
• centipede
• pentagon
• decapod

an insect with many legs

• century
• decapod
• centipede
• quadruped

a three-pronged spear

• decapod
• trident
• quadragenarian
• pentagon

a forty year old

• quadragenarian
• quadruped
• quintuplet
• decapod

the Ten Commandments

• decapod
• decalogue
• trident
• quadruped

one of five babies born at one birth

• quadruped
• decapod
• trilogy
• quintuplet

a four footed creature

• quadragenarian
• centipede
• quadruped
• pentagon