der·i·vate 
(dĕrə-vāt′)
(dĕrə-vāt′)adj.
Derivative.
- instruction
- instructional
- instructive
- instructively
- instructiveness
- instructor
- instructorship
- instrument
- instrumental
- instrumentalism
- instrumentalist
- instrumentality
- instrumentally
- instrumentation
- instrument flying
- instrument landing
- instrument panel
- insubordinate
- insubordinately
- insubordination
- insubstantial
- insubstantiality
- insufferable
- insufferably
- insufficiency