"belgo-" meaning in French

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "belge",
        "3": "-o-"
      },
      "expansion": "belge + -o-",
      "name": "af"
    }
  ],
  "etymology_text": "From belge + -o-.",
  "head_templates": [
    {
      "args": {},
      "expansion": "belgo-",
      "name": "fr-prefix"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "French terms interfixed with -o-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Belgo-; a combining form relating to Belgium"
      ],
      "id": "en-belgo--fr-prefix-avyGxy5~",
      "links": [
        [
          "Belgo-",
          "Belgo-"
        ],
        [
          "Belgium",
          "Belgium#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/bɛl.ɡo/"
    },
    {
      "ipa": "/bɛl.ʒo/"
    }
  ],
  "word": "belgo-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "belge",
        "3": "-o-"
      },
      "expansion": "belge + -o-",
      "name": "af"
    }
  ],
  "etymology_text": "From belge + -o-.",
  "head_templates": [
    {
      "args": {},
      "expansion": "belgo-",
      "name": "fr-prefix"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "French 2-syllable words",
        "French entries with incorrect language header",
        "French lemmas",
        "French prefixes",
        "French terms interfixed with -o-",
        "French terms with IPA pronunciation",
        "Pages using catfix",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Belgo-; a combining form relating to Belgium"
      ],
      "links": [
        [
          "Belgo-",
          "Belgo-"
        ],
        [
          "Belgium",
          "Belgium#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/bɛl.ɡo/"
    },
    {
      "ipa": "/bɛl.ʒo/"
    }
  ],
  "word": "belgo-"
}