Quick is a related term of expeditiously.
As adverbs the difference between quick and expeditiously
is that
quick is (colloquial) with speed, quickly while
expeditiously is in an expeditious manner.
As an adjective quick
is moving with speed, rapidity or swiftness, or capable of doing so; rapid; fast.
As a noun quick
is raw or sensitive flesh, especially that underneath finger and toe nails.
As a verb quick
is to amalgamate surfaces prior to gilding or silvering by dipping them into a solution of mercury in nitric acid.