adj
promissory
PRAH-mih-saw-ree
adj
1
Containing or amounting to a formal promise, especially to pay money.
"He signed a promissory note agreeing to repay the loan within a year."
How to Use Promissory
Learner’s notesIn plain EnglishDescribes a written promise, usually about paying a debt.
Common pairings
promissory note
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He signed a _____ note agreeing to repay the loan within a year.
Etymology
From Medieval Latin prōmissōrius, built on the same root as promise.