"-nattook" meaning in Chickasaw

{
  "head_templates": [
    {
      "args": {
        "1": "cic",
        "2": "suffix",
        "cat2": "verb suffixes"
      },
      "expansion": "-nattook",
      "name": "head"
    }
  ],
  "lang": "Chickasaw",
  "lang_code": "cic",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Chickasaw entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "remote habitual ending: used to, would"
      ],
      "id": "en--nattook-cic-suffix-lAAOPPli",
      "links": [
        [
          "used to",
          "used to"
        ],
        [
          "would",
          "would"
        ]
      ],
      "synonyms": [
        {
          "word": "-hminattook"
        },
        {
          "word": "-hnattook"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-nattook"
}

{
  "head_templates": [
    {
      "args": {
        "1": "cic",
        "2": "suffix",
        "cat2": "verb suffixes"
      },
      "expansion": "-nattook",
      "name": "head"
    }
  ],
  "lang": "Chickasaw",
  "lang_code": "cic",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Chickasaw entries with incorrect language header",
        "Chickasaw lemmas",
        "Chickasaw suffixes",
        "Chickasaw verb suffixes",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "remote habitual ending: used to, would"
      ],
      "links": [
        [
          "used to",
          "used to"
        ],
        [
          "would",
          "would"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "-hminattook"
    },
    {
      "word": "-hnattook"
    }
  ],
  "word": "-nattook"
}