"Cgm" meaning in Latin

{
  "head_templates": [
    {
      "args": {
        "1": "Cgm<0>",
        "g": "m",
        "num": "both"
      },
      "expansion": "Cgm m (indeclinable)",
      "name": "la-noun"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Cōdex germānicus monacēnsis"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Latin entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Cgm 415 ― Cgm 415",
          "type": "example"
        },
        {
          "text": "Cgm 558 ― Cgm 558",
          "type": "example"
        },
        {
          "text": "Cgm 9220 ― Cgm 9220",
          "type": "example"
        }
      ],
      "glosses": [
        "Initialism of Cōdex germānicus monacēnsis."
      ],
      "id": "en-Cgm-la-noun-vVi4fkZ1",
      "links": [
        [
          "Cōdex germānicus monacēnsis",
          "codex Germanicus Monacensis#Latin"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable",
        "initialism",
        "masculine"
      ]
    }
  ],
  "word": "Cgm"
}

{
  "head_templates": [
    {
      "args": {
        "1": "Cgm<0>",
        "g": "m",
        "num": "both"
      },
      "expansion": "Cgm m (indeclinable)",
      "name": "la-noun"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "Cōdex germānicus monacēnsis"
        }
      ],
      "categories": [
        "Latin entries with incorrect language header",
        "Latin indeclinable nouns",
        "Latin initialisms",
        "Latin lemmas",
        "Latin masculine indeclinable nouns",
        "Latin masculine nouns",
        "Latin nouns",
        "Latin terms with usage examples"
      ],
      "examples": [
        {
          "text": "Cgm 415 ― Cgm 415",
          "type": "example"
        },
        {
          "text": "Cgm 558 ― Cgm 558",
          "type": "example"
        },
        {
          "text": "Cgm 9220 ― Cgm 9220",
          "type": "example"
        }
      ],
      "glosses": [
        "Initialism of Cōdex germānicus monacēnsis."
      ],
      "links": [
        [
          "Cōdex germānicus monacēnsis",
          "codex Germanicus Monacensis#Latin"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "indeclinable",
        "initialism",
        "masculine"
      ]
    }
  ],
  "word": "Cgm"
}