sundry creditors=The term "Sundry" usually refers Small or infrequent customers/companies that are not assigned individual ledger accounts but are classified as a group. Sundrydebtors are such small entities that owe the company money. Sundry creditors are such small entities that the company owes money to.

sundry debtors= Sundry can mean various, miscellaneous, or diverse. Sundry debtors might refer to a company's customers who rarely make purchases on credit and the amounts they purchase are not significant. I suspect that the term sundry was more common when bookkeeping was a manual task.