"-erig" meaning in Dutch

{
  "etymology_text": "By analogy of many words ending in -er that were suffixed with -ig.",
  "head_templates": [
    {
      "args": {
        "1": "nl",
        "2": "suffix",
        "cat2": "adjective-forming suffixes"
      },
      "expansion": "-erig",
      "name": "head"
    }
  ],
  "lang": "Dutch",
  "lang_code": "nl",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Dutch entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "-y, forming adjectives from nouns or verb stems"
      ],
      "id": "en--erig-nl-suffix-BPQd~ZAK",
      "links": [
        [
          "-y",
          "-y"
        ]
      ],
      "synonyms": [
        {
          "word": "-ig"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ərəx/"
    }
  ],
  "word": "-erig"
}

{
  "etymology_text": "By analogy of many words ending in -er that were suffixed with -ig.",
  "head_templates": [
    {
      "args": {
        "1": "nl",
        "2": "suffix",
        "cat2": "adjective-forming suffixes"
      },
      "expansion": "-erig",
      "name": "head"
    }
  ],
  "lang": "Dutch",
  "lang_code": "nl",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Dutch adjective-forming suffixes",
        "Dutch entries with incorrect language header",
        "Dutch lemmas",
        "Dutch suffixes",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "-y, forming adjectives from nouns or verb stems"
      ],
      "links": [
        [
          "-y",
          "-y"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ərəx/"
    }
  ],
  "synonyms": [
    {
      "word": "-ig"
    }
  ],
  "word": "-erig"
}