Definition - What does Derivative mean?
The term derivative in simple terms may be defined as anything that is related to something or is taken from something. In terms of a copyright, derivative means any work which has been developed, inspired, or adapted from an earlier piece.
Justipedia explains Derivative
Derivative is also a financial instrument whose value is determined from a secondary source like commodity or currency. Similarly a derivative acquisition is when an acquisition is obtained from another making it different from original acquisition.