v. t. To impress with a seal; to mark as with a seal; hence, to ratify. [ Obs. ] [ 1913 Webster ]

This deed I do enseal. Piers Plowman. [ 1913 Webster ]

v. t. [ 1st pref. un- + seal. ] 1. To break or remove the seal of; to open, as what is sealed; as, to unseal a letter. [ 1913 Webster ]

Unable to unseal his lips beyond the width of a quarter of an inch. Sir W. Scott. [ 1913 Webster ]

2. To disclose, as a secret. [ Obs. ] The Coronation. [ 1913 Webster ]