Requisite
Requisite (r?k"w?-z?t) , noun
That which is required, or is necessary; something indispensable.
God, on his part, has declared the requisites on ours; what we must do to obtain blessings, is the great business of us all to know.
Requisite , adjective
[Latin 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.