"-gu" meaning in Gamilaraay

{
  "head_templates": [
    {
      "args": {
        "1": "kld",
        "2": "suffix"
      },
      "expansion": "-gu",
      "name": "head"
    }
  ],
  "lang": "Gamilaraay",
  "lang_code": "kld",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "_dis": "73 17 10 0",
          "kind": "other",
          "name": "Gamilaraay entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "movement to"
      ],
      "id": "en--gu-kld-suffix-VsLpPPSO",
      "tags": [
        "morpheme"
      ]
    },
    {
      "glosses": [
        "purpose"
      ],
      "id": "en--gu-kld-suffix-gbBt9DA-",
      "tags": [
        "morpheme"
      ]
    },
    {
      "categories": [],
      "examples": [
        {
          "english": "boy's father.",
          "text": "bubaa birraygu",
          "type": "example"
        }
      ],
      "glosses": [
        "belonging to"
      ],
      "id": "en--gu-kld-suffix-~ggbDPw2",
      "tags": [
        "morpheme"
      ]
    },
    {
      "glosses": [
        "for"
      ],
      "id": "en--gu-kld-suffix-EMIrz0x2",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-gu"
}

{
  "categories": [
    "Gamilaraay entries with incorrect language header",
    "Gamilaraay lemmas",
    "Gamilaraay suffixes",
    "Pages with 8 entries"
  ],
  "head_templates": [
    {
      "args": {
        "1": "kld",
        "2": "suffix"
      },
      "expansion": "-gu",
      "name": "head"
    }
  ],
  "lang": "Gamilaraay",
  "lang_code": "kld",
  "pos": "suffix",
  "senses": [
    {
      "glosses": [
        "movement to"
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "glosses": [
        "purpose"
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "categories": [
        "Gamilaraay terms with usage examples"
      ],
      "examples": [
        {
          "english": "boy's father.",
          "text": "bubaa birraygu",
          "type": "example"
        }
      ],
      "glosses": [
        "belonging to"
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "glosses": [
        "for"
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-gu"
}