延滞

1. Origins, structure, and basic meaning

• Structure: 延滞 (えんたい) denotes a delay past a due date, especially an overdue return or payment.
• Basic usage: 延滞してしまった reports that a library return became overdue; 支払いの延滞を防ぐ treats late payment as something to prevent.

2. Common pitfalls and similar expressions

• Verbal overdue event and nominal delay
  • してしまった marks an already incurred, regrettable delay; 支払いの延滞 names the overdue status as a noun.