"idib" meaning in Old Irish

{
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "verb form",
        "3": "",
        "head": ""
      },
      "expansion": "idib",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "idib",
      "name": "sga-verb form"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Irish 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"
        }
      ],
      "examples": [
        {
          "english": "It is no detriment to you pl, though we are not with you, for you are good already.",
          "text": "Ní indráigne dúib cinin·fil lib, ar idib maithi cene.",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "word": "is"
        }
      ],
      "glosses": [
        "second-person plural present indicative of is"
      ],
      "id": "en-idib-sga-verb-fxRcjvWs",
      "links": [
        [
          "is",
          "is#Old_Irish"
        ]
      ],
      "tags": [
        "form-of",
        "indicative",
        "plural",
        "present",
        "second-person"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈiðʲiβʲ]"
    }
  ],
  "word": "idib"
}

{
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "verb form",
        "3": "",
        "head": ""
      },
      "expansion": "idib",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "idib",
      "name": "sga-verb form"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Old Irish entries with incorrect language header",
        "Old Irish non-lemma forms",
        "Old Irish terms with quotations",
        "Old Irish verb forms",
        "Pages with 1 entry"
      ],
      "examples": [
        {
          "english": "It is no detriment to you pl, though we are not with you, for you are good already.",
          "text": "Ní indráigne dúib cinin·fil lib, ar idib maithi cene.",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "word": "is"
        }
      ],
      "glosses": [
        "second-person plural present indicative of is"
      ],
      "links": [
        [
          "is",
          "is#Old_Irish"
        ]
      ],
      "tags": [
        "form-of",
        "indicative",
        "plural",
        "present",
        "second-person"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈiðʲiβʲ]"
    }
  ],
  "word": "idib"
}