Some dictionaries seem to include the word "thrift" at the end of the definition for oikonomia. I found some good examples on the Online Etymology Dictionary and on Merriam-Webster:
Greek oikonomia "household management, thrift.
I would like to know the source of this meaning, as it seems that oikonomos is directly understood as only household management.
When and how did the word "economy" start to mean a thrift household management?