Emily Dickinson Lexicon

POS'TU-LATE, v.t. [supra.]

1. To beg or assume without proof. [Little used.] – Brown.
2. To invite; to solicit; to require by entreaty. – Burnet.
3. To assume; to take without positive consent. The Byzantine emperors appear to have exercised, or at least to have postulated a sort of paramount supremacy, over this nation. – Tooke.