dunning
verb
Definitions
To ask or beset a debtor for payment.
To harass by continually repeating e.g. a request.
verb
Definitions
To cure, as codfish, by laying them, after salting, in a pile in a dark place, covered with saltgrass or a similar substance.
noun
Definitions
Attempt to collect a debt.
Example: He asked his attorney to send her a dunning letter.