Debted
Concise Oxford English Dictionary © 2008 Oxford University Press:
debt/det/
▶noun
- 1 money owed or due.
■ the state of owing money.
- 2 a feeling of gratitude for a favour.
– phrases
be in someone's debt owe gratitude to someone for a favour.
be in someone's debt owe gratitude to someone for a favour.
– origin ME dette: from OFr., based on L. debitum ‘something owed’, past part. of debere ‘owe’.

