"-er" meaning in Middle Dutch

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "nl",
            "2": "-er"
          },
          "expansion": "Dutch: -er",
          "name": "desc"
        }
      ],
      "text": "Dutch: -er"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "dum",
        "2": "odt",
        "3": "-iro"
      },
      "expansion": "Old Dutch -iro",
      "name": "inh"
    },
    {
      "args": {
        "1": "odt",
        "2": "-oro"
      },
      "expansion": "-oro",
      "name": "m"
    },
    {
      "args": {
        "1": "dum",
        "2": "gem-pro",
        "3": "*-izô"
      },
      "expansion": "Proto-Germanic *-izô",
      "name": "inh"
    },
    {
      "args": {
        "1": "gem-pro",
        "2": "*-ōzô"
      },
      "expansion": "*-ōzô",
      "name": "m"
    }
  ],
  "etymology_text": "From Old Dutch -iro, -oro, from Proto-Germanic *-izô, *-ōzô.",
  "head_templates": [
    {
      "args": {
        "1": "dum",
        "2": "suffix",
        "cat2": "adjective-forming suffixes"
      },
      "expansion": "-er",
      "name": "head"
    }
  ],
  "lang": "Middle Dutch",
  "lang_code": "dum",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Middle Dutch entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with raw sortkeys",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "-er. Forms the comparative of adjectives."
      ],
      "id": "en--er-dum-suffix-mE-jTCj6",
      "links": [
        [
          "-er",
          "-er#English"
        ]
      ],
      "related": [
        {
          "word": "-st"
        }
      ],
      "synonyms": [
        {
          "word": "-re"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-er"
}

{
  "categories": [
    "Pages with raw sortkeys"
  ],
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "nl",
            "2": "-er"
          },
          "expansion": "Dutch: -er",
          "name": "desc"
        }
      ],
      "text": "Dutch: -er"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "dum",
        "2": "odt",
        "3": "-iro"
      },
      "expansion": "Old Dutch -iro",
      "name": "inh"
    },
    {
      "args": {
        "1": "odt",
        "2": "-oro"
      },
      "expansion": "-oro",
      "name": "m"
    },
    {
      "args": {
        "1": "dum",
        "2": "gem-pro",
        "3": "*-izô"
      },
      "expansion": "Proto-Germanic *-izô",
      "name": "inh"
    },
    {
      "args": {
        "1": "gem-pro",
        "2": "*-ōzô"
      },
      "expansion": "*-ōzô",
      "name": "m"
    }
  ],
  "etymology_text": "From Old Dutch -iro, -oro, from Proto-Germanic *-izô, *-ōzô.",
  "head_templates": [
    {
      "args": {
        "1": "dum",
        "2": "suffix",
        "cat2": "adjective-forming suffixes"
      },
      "expansion": "-er",
      "name": "head"
    }
  ],
  "lang": "Middle Dutch",
  "lang_code": "dum",
  "pos": "suffix",
  "related": [
    {
      "word": "-st"
    }
  ],
  "senses": [
    {
      "categories": [
        "Middle Dutch adjective-forming suffixes",
        "Middle Dutch comparative adjectives",
        "Middle Dutch entries with incorrect language header",
        "Middle Dutch lemmas",
        "Middle Dutch suffixes",
        "Middle Dutch terms derived from Old Dutch",
        "Middle Dutch terms derived from Proto-Germanic",
        "Middle Dutch terms inherited from Old Dutch",
        "Middle Dutch terms inherited from Proto-Germanic",
        "Pages with raw sortkeys"
      ],
      "glosses": [
        "-er. Forms the comparative of adjectives."
      ],
      "links": [
        [
          "-er",
          "-er#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "-re"
    }
  ],
  "word": "-er"
}