countersecure
verbEtymology From counter- + secure.
1
To give additional security to or for.
- February 28 1785, Edmund Burke, speech in the House of Commons on the Nabob of Arcot's Debts When a soucar, that is a money dealer, becomes security for any native prince, the course is for the native prince to countersecure the money dealer, by making over to him in mortgage a portion of his territory