Derivation

/ˌdɛ.ɹɪˈveɪ.ʃ(ə)n/
B2

Definition, CEFR level B2, pronunciation, examples, and quiz.

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nounA leading or drawing off of water from a stream or source.

nounThe 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.

Esperanto has an excellent derivation system.
Some people find derivation to be more logical and regular in Ido than in Esperanto.
CEFR Practice Quiz
The ____ of this word comes from an ancient language no longer spoken.
CEFR Practice Quiz (Alternate)
Esperanto has an excellent ____ system.

From Middle English derivacioun, borrowed from Middle French dérivation, from Latin dērīvātiō, dērīvātiōnem. Morphologically derive + -ation.

"There were also letters to scientists and other scholars, pages of derivations of mathematics and physics formulae, and copious writings on alchemy and religion." — 2014 June 21, “Magician’s brain”, in The Economist, volume 411, number 8892, archived from the original on 09 Jan 2025:
CEFR Practice Quiz
The ____ of this word comes from an ancient language no longer spoken.
CEFR Practice Quiz (Alternate)
Esperanto has an excellent ____ system.

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