"-ill" meaning in Middle English

{
  "head_templates": [
    {
      "args": {
        "1": "enm",
        "2": "suffix"
      },
      "expansion": "-ill",
      "name": "head"
    }
  ],
  "lang": "Middle English",
  "lang_code": "enm",
  "pos": "suffix",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "agentive suffix",
          "word": "-el"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Middle English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative form of -el (“agentive suffix”)"
      ],
      "id": "en--ill-enm-suffix-a1gD4cIZ",
      "links": [
        [
          "-el",
          "-el#Middle_English:_agentive"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "morpheme"
      ]
    }
  ],
  "word": "-ill"
}

{
  "categories": [
    "Old Norse entries with incorrect language header",
    "Old Norse lemmas",
    "Old Norse masculine a-stem nouns",
    "Old Norse suffixes",
    "Old Norse terms derived from Proto-Germanic",
    "Old Norse terms inherited from Proto-Germanic"
  ],
  "head_templates": [
    {
      "args": {
        "1": "enm",
        "2": "suffix"
      },
      "expansion": "-ill",
      "name": "head"
    }
  ],
  "lang": "Middle English",
  "lang_code": "enm",
  "pos": "suffix",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "agentive suffix",
          "word": "-el"
        }
      ],
      "categories": [
        "Middle English entries with incorrect language header",
        "Middle English lemmas",
        "Middle English suffixes"
      ],
      "glosses": [
        "Alternative form of -el (“agentive suffix”)"
      ],
      "links": [
        [
          "-el",
          "-el#Middle_English:_agentive"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "morpheme"
      ]
    }
  ],
  "word": "-ill"
}