contrive

verb

1.
make or work out a plan for; devise
acraft avel forethink design plan project
Agent:
contriver
Derived from:
contriver
2.
come up with (an idea, plan, explanation, theory, or principle) after a mental effort
befind come up with devise excogitate forge formulate invent
Event:
contrivance
Derived from:
contrivance
3.