The root -dec comes from a word that means ten.
decimal (n)
tenths or to the number 10 Put the decimal before the 5 when you mean one half. 1.5 7.2 decimate (v)
to destroy a great number The population was decimated by war. The hungry boys decimated the cake. decagon (n)
a shape that has ten angles and ten sides. A decagon has 10 sides. My aunt built a room shaped like a decagon. |
decade (n)
ten years In what decade were you born? The war lasted more than a decade. decathlon (n)
an sporting contest with ten different events. Brian Clay, an American, won the 2008 Decathlon in China. I never want to do a decathlon. |