The Collaborative International Dictionary
Requisitely
Requisite \Req"ui*site\, a. [L. requisitus, p. p. requirere; pref. re- re- + quaerere to ask. See Require.] Required by the nature of things, or by circumstances; so needful that it can not be dispensed with; necessary; indispensable.
All truth requisite for men to know.
--Milton.
Syn: Necessary; needful; indispensable; essential. [1913 Webster] -- Req"ui*site*ly, adv. -- Req"ui*site*ness, n.
Wiktionary
requisitely
adv. In a requisite way; necessarily.