"Beng" meaning in Translingual

{
  "etymology_templates": [
    {
      "args": {
        "1": "mul",
        "2": "en",
        "3": "Bengali"
      },
      "expansion": "English Bengali",
      "name": "der"
    }
  ],
  "etymology_text": "From English Bengali, from Bengal (“region in South Asia”) + -i (“adjective suffix”).\nThe \"ali\" part was trimmed from \"Bengali\", in accordance with the four-letter format in ISO 15924.",
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "proper noun"
      },
      "expansion": "Beng",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Translingual entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "ISO 15924 for Bengali script."
      ],
      "id": "en-Beng-mul-name-NapLwTzR",
      "links": [
        [
          "Bengali",
          "Bengali"
        ]
      ]
    }
  ],
  "word": "Beng"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "mul",
        "2": "en",
        "3": "Bengali"
      },
      "expansion": "English Bengali",
      "name": "der"
    }
  ],
  "etymology_text": "From English Bengali, from Bengal (“region in South Asia”) + -i (“adjective suffix”).\nThe \"ali\" part was trimmed from \"Bengali\", in accordance with the four-letter format in ISO 15924.",
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "proper noun"
      },
      "expansion": "Beng",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Pages with 2 entries",
        "Pages with entries",
        "Translingual entries with incorrect language header",
        "Translingual lemmas",
        "Translingual proper nouns",
        "Translingual terms derived from English"
      ],
      "glosses": [
        "ISO 15924 for Bengali script."
      ],
      "links": [
        [
          "Bengali",
          "Bengali"
        ]
      ]
    }
  ],
  "word": "Beng"
}