Final answer:
The meaning of 'renumeration' is 'the action of paying back'. In the given sentence, it refers to the act of paying back funds that were overcharged to the client.
Step-by-step explanation:
The meaning of the word 'renumeration' can be understood by breaking it down into its parts. The root word 'renumerate' means to pay back or compensate. The suffix '-ion' added to the root word indicates 'the action of'. Therefore, 'renumeration' means 'the action of paying back'. In the example sentence, it refers to the act of paying back funds that were overcharged to the client.