"ass" meaning in Old Irish

{
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "prepositional pronoun"
      },
      "expansion": "ass",
      "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 prepositional pronouns",
          "parents": [
            "Prepositional pronouns",
            "Prepositions",
            "Pronoun forms",
            "Lemmas",
            "Non-lemma forms",
            "Pronouns"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 13 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "a"
        }
      ],
      "glosses": [
        "third-person singular masculine of a"
      ],
      "id": "en-ass-sga-pron--mSAOrrK",
      "links": [
        [
          "a",
          "a#Old_Irish"
        ]
      ],
      "synonyms": [
        {
          "word": "as"
        },
        {
          "word": "es"
        }
      ],
      "tags": [
        "form-of",
        "masculine",
        "singular",
        "third-person"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/as/"
    }
  ],
  "word": "ass"
}

{
  "categories": [
    "Pages linking to anchors not found in Appendix:Glossary",
    "Pages with 13 entries",
    "Pages with entries",
    "rif:Times of day"
  ],
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "prepositional pronoun"
      },
      "expansion": "ass",
      "name": "head"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        "Old Irish entries with incorrect language header",
        "Old Irish non-lemma forms",
        "Old Irish prepositional pronouns",
        "Pages with 13 entries",
        "Pages with entries"
      ],
      "form_of": [
        {
          "word": "a"
        }
      ],
      "glosses": [
        "third-person singular masculine of a"
      ],
      "links": [
        [
          "a",
          "a#Old_Irish"
        ]
      ],
      "tags": [
        "form-of",
        "masculine",
        "singular",
        "third-person"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/as/"
    }
  ],
  "synonyms": [
    {
      "word": "as"
    },
    {
      "word": "es"
    }
  ],
  "word": "ass"
}