Containing 40 times a unit, it is usually used to call the one who is between 40 and 49 years old. It comes from the Latin numbering and is composed of quattuor ( "four" ) the ginta multiplier ( "ten times" ), in its form of adjective quartagenarius . It should be clarified that cuadrus is "box, square" , but it relates to the 4 and when you reach the Spanish can appear that change.
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