Definify.com
Webster 1913 Edition
Derivation
1.
A leading or drawing off of water from a stream or source.
[Obs.]
T. Burnet.
2.
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.
As touching traditional communication, . . . I do not doubt but many of those truths have had the help of that
derivation
. Sir M. Hale.
3.
The act of tracing origin or descent, as in grammar or genealogy;
as, the
. derivation
of a word from an Aryan root4.
The state or method of being derived; the relation of origin when established or asserted.
5.
That from which a thing is derived.
6.
That which is derived; a derivative; a deduction.
From the Euphrates into an artificial
derivation
of that river. Gibbon.
7.
(Math.)
The operation of deducing one function from another according to some fixed law, called the law of derivation, as the operation of differentiation or of integration.
8.
(Med.)
A drawing of humors or fluids from one part of the body to another, to relieve or lessen a morbid process.
Webster 1828 Edition
Derivation
DERIVATION
, n.1.
The act of deriving, drawing or receiving from a source; as the derivation of an estate from ancestors, or of profits from capital, or of truth or facts from antiquity.2.
In grammar, the drawing or tracing of a word from its root or original; as, derivation is from the L. Derivo, and the latter from rivus, a stream.3.
A drawing from, or turning aside from, a natural course or channel; as the derivation of water from its channel by lateral drains.4.
A drawing of humors from one part of the body to another; as the derivation of humors from the eye, by a blister on the neck.5.
The thing derived or deduced.