early 15c., from Middle French dérivation (14c.), from Latin derivationem (nominative derivatio) "a leading off, turning away," noun of action from past participle stem of derivare (see derive). Grammatical sense is older; general meaning "origination, descent" is from c. 1600.
1. a word of Greek derivation
2. The custom is of Scottish derivation.
3. The derivation of its name is obscure.
4. The word is of old French derivation.
5. Our derivation of the chain rule contains one flaw.