"back payment" meaning in English

{
  "forms": [
    {
      "form": "back payments",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "back payment (plural back payments)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "The employer paid a back payment to his employee on his wages from three months earlier."
        }
      ],
      "glosses": [
        "An overdue payment from a debtor to a creditor on money owed."
      ],
      "id": "en-back_payment-en-noun-q3pRTssr",
      "links": [
        [
          "debtor",
          "debtor"
        ],
        [
          "creditor",
          "creditor"
        ]
      ],
      "related": [
        {
          "word": "back pay"
        }
      ]
    }
  ],
  "word": "back payment"
}

{
  "forms": [
    {
      "form": "back payments",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "back payment (plural back payments)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "back pay"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns"
      ],
      "examples": [
        {
          "text": "The employer paid a back payment to his employee on his wages from three months earlier."
        }
      ],
      "glosses": [
        "An overdue payment from a debtor to a creditor on money owed."
      ],
      "links": [
        [
          "debtor",
          "debtor"
        ],
        [
          "creditor",
          "creditor"
        ]
      ]
    }
  ],
  "word": "back payment"
}