approvement

noun3

1. •
   (no longer used) Approval; approbation.

   • I did nothing without your approvement. — 1628
2. •
   (UK, no longer used) A confession of guilt by a prisoner charged with treason or felony, together with an accusation or implication against the accomplices and a giving evidence against them in order to obtain his own pardon.
3. •
   (no longer used) Improvement of common lands by converting them for advantage of the landlord.