"-en" meaning in Emilian

{
  "head_templates": [
    {
      "args": {
        "1": "egl",
        "2": "pronoun",
        "3": "adverbial"
      },
      "expansion": "-en (adverbial)",
      "name": "head"
    }
  ],
  "lang": "Emilian",
  "lang_code": "egl",
  "pos": "pron",
  "senses": [
    {
      "alt_of": [
        {
          "word": "in"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Emilian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Emilian pronouns",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "Eat some of it! (imperative, singular)",
          "text": "Mānjen un pōk!",
          "type": "example"
        }
      ],
      "glosses": [
        "Alternative form of in"
      ],
      "id": "en--en-egl-pron-x0SZueIg",
      "links": [
        [
          "in",
          "in#Emilian"
        ]
      ],
      "raw_glosses": [
        "(enclitic, after a consonant) Alternative form of in"
      ],
      "raw_tags": [
        "after a consonant"
      ],
      "tags": [
        "adverbial",
        "alt-of",
        "alternative",
        "enclitic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/en/"
    }
  ],
  "word": "-en"
}

{
  "categories": [
    "Yucatec Maya entries with incorrect language header",
    "Yucatec Maya lemmas",
    "Yucatec Maya suffixes"
  ],
  "head_templates": [
    {
      "args": {
        "1": "egl",
        "2": "pronoun",
        "3": "adverbial"
      },
      "expansion": "-en (adverbial)",
      "name": "head"
    }
  ],
  "lang": "Emilian",
  "lang_code": "egl",
  "pos": "pron",
  "senses": [
    {
      "alt_of": [
        {
          "word": "in"
        }
      ],
      "categories": [
        "Emilian entries with incorrect language header",
        "Emilian lemmas",
        "Emilian pronouns",
        "Emilian terms with IPA pronunciation",
        "Emilian terms with usage examples"
      ],
      "examples": [
        {
          "english": "Eat some of it! (imperative, singular)",
          "text": "Mānjen un pōk!",
          "type": "example"
        }
      ],
      "glosses": [
        "Alternative form of in"
      ],
      "links": [
        [
          "in",
          "in#Emilian"
        ]
      ],
      "raw_glosses": [
        "(enclitic, after a consonant) Alternative form of in"
      ],
      "raw_tags": [
        "after a consonant"
      ],
      "tags": [
        "adverbial",
        "alt-of",
        "alternative",
        "enclitic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/en/"
    }
  ],
  "word": "-en"
}