"isin" meaning in Old Irish

{
  "etymology_templates": [
    {
      "args": {
        "1": "sga",
        "2": "hi",
        "3": "in",
        "pos2": "accusative masculine/feminine singular",
        "t1": "in",
        "t2": "the"
      },
      "expansion": "Univerbation of hi (“in”) + in (“the”, accusative masculine/feminine singular)",
      "name": "univ"
    }
  ],
  "etymology_text": "Univerbation of hi (“in”) + in (“the”, accusative masculine/feminine singular)",
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "article form"
      },
      "expansion": "isin",
      "name": "head"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "article",
  "senses": [
    {
      "categories": [
        {
          "_dis": "52 48",
          "kind": "other",
          "name": "Old Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "49 51",
          "kind": "other",
          "name": "Old Irish univerbations",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "in the (accusative masculine/feminine singular)"
      ],
      "id": "en-isin-sga-article-AHuIL-He"
    },
    {
      "alt_of": [
        {
          "extra": "(“in the (dative singular)”)",
          "word": "isind"
        }
      ],
      "categories": [
        {
          "_dis": "52 48",
          "kind": "other",
          "name": "Old Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "49 51",
          "kind": "other",
          "name": "Old Irish univerbations",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "english": "It is to the interrogation that is in the canon that this interrogation answers with him, i.e. ne occideris i.e. will you sg slay i.e. non i.e. you will not slay them all although they have deserved it.",
          "text": "Is dúnn imchumurc fil isin chanóin fris·gair lessóm a n‑imchomarc n-ísiu .i. ne occideris .i. in ⸉n‑í⸊írr-siu .i. non. .i. nís·n‑ulemairbfe ci asid·roilliset.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of isind (“in the (dative singular)”)"
      ],
      "id": "en-isin-sga-article-0M1ZPN0-",
      "links": [
        [
          "isind",
          "isind#Old Irish"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈisin]"
    }
  ],
  "word": "isin"
}

{
  "categories": [
    "Old Irish article forms",
    "Old Irish entries with incorrect language header",
    "Old Irish non-lemma forms",
    "Old Irish terms with IPA pronunciation",
    "Old Irish univerbations"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "sga",
        "2": "hi",
        "3": "in",
        "pos2": "accusative masculine/feminine singular",
        "t1": "in",
        "t2": "the"
      },
      "expansion": "Univerbation of hi (“in”) + in (“the”, accusative masculine/feminine singular)",
      "name": "univ"
    }
  ],
  "etymology_text": "Univerbation of hi (“in”) + in (“the”, accusative masculine/feminine singular)",
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "article form"
      },
      "expansion": "isin",
      "name": "head"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "article",
  "senses": [
    {
      "glosses": [
        "in the (accusative masculine/feminine singular)"
      ]
    },
    {
      "alt_of": [
        {
          "extra": "(“in the (dative singular)”)",
          "word": "isind"
        }
      ],
      "categories": [
        "Old Irish terms with quotations"
      ],
      "examples": [
        {
          "english": "It is to the interrogation that is in the canon that this interrogation answers with him, i.e. ne occideris i.e. will you sg slay i.e. non i.e. you will not slay them all although they have deserved it.",
          "text": "Is dúnn imchumurc fil isin chanóin fris·gair lessóm a n‑imchomarc n-ísiu .i. ne occideris .i. in ⸉n‑í⸊írr-siu .i. non. .i. nís·n‑ulemairbfe ci asid·roilliset.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of isind (“in the (dative singular)”)"
      ],
      "links": [
        [
          "isind",
          "isind#Old Irish"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈisin]"
    }
  ],
  "word": "isin"
}