"-en" meaning in Luxembourgish

{
  "head_templates": [
    {
      "args": {
        "1": "lb",
        "2": "suffix"
      },
      "expansion": "-en",
      "name": "head"
    }
  ],
  "lang": "Luxembourgish",
  "lang_code": "lb",
  "pos": "suffix",
  "senses": [
    {
      "glosses": [
        "Used for some nouns to form plural forms."
      ],
      "id": "en--en-lb-suffix-PMxjpWdh",
      "tags": [
        "morpheme"
      ]
    },
    {
      "glosses": [
        "Used to show the infinitive form of verbs."
      ],
      "id": "en--en-lb-suffix-87x0z3cs",
      "tags": [
        "morpheme"
      ]
    },
    {
      "categories": [
        {
          "_dis": "6 10 84",
          "kind": "other",
          "name": "Luxembourgish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A suffix which is used to create adjectives that refer to materials"
      ],
      "id": "en--en-lb-suffix-IZIyq14F",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/en/"
    },
    {
      "ipa": "[ən]"
    }
  ],
  "wikipedia": [
    "Eifeler Regel"
  ],
  "word": "-en"
}

{
  "categories": [
    "Luxembourgish 1-syllable words",
    "Luxembourgish entries with incorrect language header",
    "Luxembourgish lemmas",
    "Luxembourgish suffixes",
    "Luxembourgish terms with IPA pronunciation",
    "Yucatec Maya entries with incorrect language header",
    "Yucatec Maya lemmas",
    "Yucatec Maya suffixes"
  ],
  "head_templates": [
    {
      "args": {
        "1": "lb",
        "2": "suffix"
      },
      "expansion": "-en",
      "name": "head"
    }
  ],
  "lang": "Luxembourgish",
  "lang_code": "lb",
  "pos": "suffix",
  "senses": [
    {
      "glosses": [
        "Used for some nouns to form plural forms."
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "glosses": [
        "Used to show the infinitive form of verbs."
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "glosses": [
        "A suffix which is used to create adjectives that refer to materials"
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/en/"
    },
    {
      "ipa": "[ən]"
    }
  ],
  "wikipedia": [
    "Eifeler Regel"
  ],
  "word": "-en"
}