derivation

1. (countable, uncountable)A leading or drawing off of water from a stream or source.

   drawing off water from its main channel as for irrigation

2. (countable, uncountable)The act of receiving anything from a source; the act of procuring an effect from a cause, means, or condition, as profits from capital, conclusions or opinions from evidence.

3. (countable, uncountable)The act of tracing origin or descent; an instance thereof (for example, an etymology).

   the derivation of a word from an Indo-European root

   Herleiten, Herleitung, Ableitung

   происхожде́ниеproisxoždénije

   the act of deriving something or obtaining something from a source or origin

4. (countable, uncountable)Forming a new word by changing the base of another word or by adding affixes to it.

5. (countable, uncountable)The state or method of being derived; the relation of origin when established or asserted.

6. (countable, uncountable)That from which a thing is derived.

7. (countable, uncountable)That which is derived; a derivative; the result of a deduction.

8. (countable, uncountable)The process of deriving one thing from another, especially in logic; a deduction.

9. The process of deriving one thing from another, especially in logic; a deduction.

   (countable, uncountable)A formal proof: a sequence of statements, each of which is logically entailed by those preceding (with respect to some collection of rules of inference), the initial statements being taken as axioms.

10. (countable, uncountable)The process of application of the derivative operator to a function, yielding another function called the derived function of the first.

11. (countable, uncountable)An algebraic generalization of the derivative operator (from its natural setting in the ring of real-valued functions) to a general associative algebra over a field. Formally, (given an algebra A over a field K) a K-linear endomorphism that satisfies Leibnitz's Law.

12. An algebraic generalization of the derivative operator (from its natural setting in the ring of real-valued functions) to a general associative algebra over a field. Formally, (given an algebra A over a field K) a K-linear endomorphism that satisfies Leibnitz's Law.

    (countable, uncountable)Any of several generalizations of this notion: a Hasse–Schmidt derivation, a graded derivation, etc.

1. Esperanto has an excellent derivation system.

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2. The derivations of many words are unknown.

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3. Linguistic purism is a silly idea; compounding, conversion, and derivation can only take you so far.

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4. Some people find derivation to be more logical and regular in Ido than in Esperanto.

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regular