"-ing" meaning in Icelandic

{
  "etymology_templates": [
    {
      "args": {
        "1": "is",
        "2": "non",
        "3": "-ing"
      },
      "expansion": "Old Norse -ing",
      "name": "inh"
    },
    {
      "args": {
        "1": "is",
        "2": "gem-pro",
        "3": "*-ingō"
      },
      "expansion": "Proto-Germanic *-ingō",
      "name": "inh"
    },
    {
      "args": {
        "1": "gem-pro",
        "2": "*-ungō"
      },
      "expansion": "*-ungō",
      "name": "m"
    }
  ],
  "etymology_text": "From Old Norse -ing, from Proto-Germanic *-ingō, *-ungō.",
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "suffix",
        "g": "f"
      },
      "expansion": "-ing f",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Icelandic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "-ing; Indicates an action performed by a verb."
      ],
      "id": "en--ing-is-suffix-3m8DYld9",
      "links": [
        [
          "-ing",
          "-ing#English"
        ]
      ],
      "tags": [
        "feminine",
        "morpheme"
      ]
    }
  ],
  "word": "-ing"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "is",
        "2": "non",
        "3": "-ing"
      },
      "expansion": "Old Norse -ing",
      "name": "inh"
    },
    {
      "args": {
        "1": "is",
        "2": "gem-pro",
        "3": "*-ingō"
      },
      "expansion": "Proto-Germanic *-ingō",
      "name": "inh"
    },
    {
      "args": {
        "1": "gem-pro",
        "2": "*-ungō"
      },
      "expansion": "*-ungō",
      "name": "m"
    }
  ],
  "etymology_text": "From Old Norse -ing, from Proto-Germanic *-ingō, *-ungō.",
  "head_templates": [
    {
      "args": {
        "1": "is",
        "2": "suffix",
        "g": "f"
      },
      "expansion": "-ing f",
      "name": "head"
    }
  ],
  "lang": "Icelandic",
  "lang_code": "is",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Icelandic entries with incorrect language header",
        "Icelandic feminine suffixes",
        "Icelandic lemmas",
        "Icelandic suffixes",
        "Icelandic terms derived from Old Norse",
        "Icelandic terms derived from Proto-Germanic",
        "Icelandic terms inherited from Old Norse",
        "Icelandic terms inherited from Proto-Germanic"
      ],
      "glosses": [
        "-ing; Indicates an action performed by a verb."
      ],
      "links": [
        [
          "-ing",
          "-ing#English"
        ]
      ],
      "tags": [
        "feminine",
        "morpheme"
      ]
    }
  ],
  "word": "-ing"
}