"repay" in the verb sense
1. refund, return, repay, give back
"Please refund me my money"
2. requite, repay
make repayment for or return something
3. reward, repay, pay back
act or give recompense in recognition of someone's behavior or actions
4. retort, come back, repay, return, riposte, rejoin
Source: WordNet® (An amazing lexical database of English)
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