Pledge = janji
Collateral = agunan
Acceptable = dapat diterima

Agunan yg dijanjikan merupakan suatu bentuk jaminan di mana barang/benda yg dijadikan jaminan tetap berada dalam kekuasaan fisik si pemberi jaminan.

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Note added at 1 hr (2016-08-20 04:06:14 GMT)
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Rujukan:
Tidak ada keputusan yang diambil untuk mengurangi janji agunan untuk pinjaman bank Yunani.
http://harian.analisadaily.com/ekonomi-internasional/news/ec...

Pledged Collateral

Pledged collateral refers to assets that are used to secure a loan. The borrower pledges assets or property to the lender to guarantee or secure the loan. Pledging assets, also referred to as hypothecation, does not transfer ownership of the property to the creditor, but gives the creditor a non-possessory interest in the property. This means that the borrower still retains the ownership of the property, but the lender has a claim against it.

In the event of default, the collateral for a loan may be liquidated and sold off by the creditor in order to pay for the unsettled debt. In this case, the borrower loses possession of the collateral properties and all proceeds from the sale of these collateral properties go to pay off the debtors obligations.
http://strategiccfo.com/pledged-collateral/