"sní" meaning in Old Irish

{
  "etymology_templates": [
    {
      "args": {
        "1": "sga",
        "2": "cel-pro",
        "3": "*snīs"
      },
      "expansion": "Proto-Celtic *snīs",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "ni"
      },
      "expansion": "Welsh ni",
      "name": "cog"
    },
    {
      "args": {
        "1": "sga",
        "2": "ine-pro",
        "3": "*nos"
      },
      "expansion": "Proto-Indo-European *nos",
      "name": "inh"
    },
    {
      "args": {
        "1": "la",
        "2": "nōs"
      },
      "expansion": "Latin nōs",
      "name": "cog"
    },
    {
      "args": {
        "1": "got",
        "2": "𐌿𐌽𐍃"
      },
      "expansion": "Gothic 𐌿𐌽𐍃 (uns)",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Celtic *snīs (compare Welsh ni), from Proto-Indo-European *nos, compare Latin nōs, Gothic 𐌿𐌽𐍃 (uns).",
  "forms": [
    {
      "form": "nathar",
      "tags": [
        "genitive"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "pronoun",
        "3": "genitive",
        "4": "nathar",
        "cat2": "personal pronouns"
      },
      "expansion": "sní (genitive nathar)",
      "name": "head"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "pron",
  "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": "Old Irish personal pronouns",
          "parents": [
            "Personal pronouns",
            "Pronouns",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Irish pronouns",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "even we, believing in Christ",
          "text": "o sní credentes in Christo",
          "type": "quotation"
        },
        {
          "english": "We have not done it first, and we have not done it alone.",
          "text": "Ní sní cetid·deirgni ⁊ ní sní dud·rigni nammá.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "we"
      ],
      "id": "en-sní-sga-pron-3HyBG5Vh",
      "links": [
        [
          "we",
          "we"
        ]
      ],
      "related": [
        {
          "tags": [
            "emphatic"
          ],
          "word": "nini"
        },
        {
          "tags": [
            "emphatic"
          ],
          "word": "sinni"
        },
        {
          "tags": [
            "emphatic"
          ],
          "word": "sisni"
        },
        {
          "tags": [
            "emphatic"
          ],
          "word": "snisni"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sʲn͈ʲiː/"
    }
  ],
  "word": "sní"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "sga",
        "2": "cel-pro",
        "3": "*snīs"
      },
      "expansion": "Proto-Celtic *snīs",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "ni"
      },
      "expansion": "Welsh ni",
      "name": "cog"
    },
    {
      "args": {
        "1": "sga",
        "2": "ine-pro",
        "3": "*nos"
      },
      "expansion": "Proto-Indo-European *nos",
      "name": "inh"
    },
    {
      "args": {
        "1": "la",
        "2": "nōs"
      },
      "expansion": "Latin nōs",
      "name": "cog"
    },
    {
      "args": {
        "1": "got",
        "2": "𐌿𐌽𐍃"
      },
      "expansion": "Gothic 𐌿𐌽𐍃 (uns)",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Celtic *snīs (compare Welsh ni), from Proto-Indo-European *nos, compare Latin nōs, Gothic 𐌿𐌽𐍃 (uns).",
  "forms": [
    {
      "form": "nathar",
      "tags": [
        "genitive"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "pronoun",
        "3": "genitive",
        "4": "nathar",
        "cat2": "personal pronouns"
      },
      "expansion": "sní (genitive nathar)",
      "name": "head"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "pron",
  "related": [
    {
      "tags": [
        "emphatic"
      ],
      "word": "nini"
    },
    {
      "tags": [
        "emphatic"
      ],
      "word": "sinni"
    },
    {
      "tags": [
        "emphatic"
      ],
      "word": "sisni"
    },
    {
      "tags": [
        "emphatic"
      ],
      "word": "snisni"
    }
  ],
  "senses": [
    {
      "categories": [
        "Old Irish entries with incorrect language header",
        "Old Irish lemmas",
        "Old Irish personal pronouns",
        "Old Irish pronouns",
        "Old Irish terms derived from Proto-Celtic",
        "Old Irish terms derived from Proto-Indo-European",
        "Old Irish terms inherited from Proto-Celtic",
        "Old Irish terms inherited from Proto-Indo-European",
        "Old Irish terms with IPA pronunciation",
        "Old Irish terms with quotations"
      ],
      "examples": [
        {
          "english": "even we, believing in Christ",
          "text": "o sní credentes in Christo",
          "type": "quotation"
        },
        {
          "english": "We have not done it first, and we have not done it alone.",
          "text": "Ní sní cetid·deirgni ⁊ ní sní dud·rigni nammá.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "we"
      ],
      "links": [
        [
          "we",
          "we"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sʲn͈ʲiː/"
    }
  ],
  "word": "sní"
}