They all start with the prefix de- and mean something to do with the value of the number 10.
Decimal: Counting system based on number 10
Decagon: A polygon with 10 sides and angles
Decade: A period of 10 years
Decathlon: Competition in which an athlete competes in 10 events
They have in common is the prefix
Decade, decimal, decagon, decathlon.
decade decagram decahedron Decalogue decameter decane decapod Decapolis decasyllable decathlon
Dec, as in Decimal or Decade.
Decade is a noun
Deci comes from the latin Decimus which means one tenth. A prefix of deci- would mean one tenth of whatever the word is. Deciliter is one-tenth of a liter. Decibel is one-tenth of a bel, and is a unit of measurement of power. Decimeter is one-tenth of a meter.
decade decagon decadent decimal decathlon
Decimal Decalogue decagon decade decimate Decathlon decapod decathlon
decade, decagon, decalogue, December (originally, in the old calendar, meant tenth month), decimal, decimeter, decameter, decathalon, decahedron
Decagon-A triangle with 10 side Decade-10 years Decagram-10 grams Since it is a prefix, you can add deca to a lot of words and it will always be 10 (units) of whatever that word is.
YES! decade, decagon, decathlon, decathlete by the way , if there were no words that started with "deca-", then by definition, "deca-" would not be a prefix...
decade decagram decahedron Decalogue decameter decane decapod Decapolis decasyllable decathlon
decimal, December [ originally the 10th month in the Roman calendar ], decagon, decare and decahedron
decathlon is of a Greek originδέκαθλον [thekathlon] < δέκα[theka] +άθλον [athlon]δέκα = ten (see decade, decimal)άθλος = achievement (see athlete)
decimal, decimeter, decade, decagon, decanter, decapitate, decay, deceit, December, deceptive
Because the prefix 'deca' means ten. A decagon has ten sides - a decade is ten years.
Decem is Latin for ten, and December used to be the tenth calendar month.And with a slight respelling, decimal means a base-ten measuring system.
decade