Do you mean the derivation of the word holiday?
In other words where did the word come from?
It comes from a combination of holy plus day.
Here is a history of the word:
http://en.allexperts.com/q/Etymology-Meaning-Words-1474/Word-meaning-2.htm
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This is an example of a sentence using the word derivative. The teacher liked it when the student used the derivative of the trash words
English has many derivative words.
In calculus, the derivative of a linear equation is a constant. y = 2x _ 5 dy/dx = 2 ( The constant).
clockwiseAnother compound word is clockwork.
"Derivative of"