loans

[newcomer2008]

подскажите, как перевести "погасить часть основного долга по договору"
мой вариант "repay the loan principle under the agreement"

[VeryNice]

Может: to repay a part of the principal amount of the loan under ...

[NatKo]

Option:
redeem(discharge, extinguish, pay off, repay) a portion of principal debt as per contract/agreement