"-yn" meaning in Manx

{
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "gv",
        "2": "sga",
        "3": "-"
      },
      "expansion": "Old Irish",
      "name": "der"
    },
    {
      "args": {
        "1": "sga",
        "2": "imbliu"
      },
      "expansion": "Old Irish imbliu",
      "name": "noncog"
    },
    {
      "args": {
        "1": "ga",
        "2": "-anna"
      },
      "expansion": "Irish -anna",
      "name": "cog"
    },
    {
      "args": {
        "1": "gd",
        "2": "-an"
      },
      "expansion": "Scottish Gaelic -an",
      "name": "cog"
    }
  ],
  "etymology_text": "Originally the Old Irish accusative and vocative plural ending of n-stem nouns. For example Old Irish imbliu, vocative/accusative plural imblenna. Cognate with Irish -anna, Scottish Gaelic -an.",
  "head_templates": [
    {
      "args": {
        "1": "gv",
        "2": "suffix",
        "cat2": "inflectional suffixes",
        "cat3": "",
        "g": "",
        "g2": ""
      },
      "expansion": "-yn",
      "name": "head"
    },
    {
      "args": {
        "1": "i"
      },
      "expansion": "-yn",
      "name": "gv-suffix"
    }
  ],
  "lang": "Manx",
  "lang_code": "gv",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "_dis": "76 24",
          "kind": "other",
          "name": "Manx entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Pluralisation suffix, similar to English -s"
      ],
      "id": "en--yn-gv-suffix-eX-qhBDP",
      "links": [
        [
          "English",
          "w:English language"
        ],
        [
          "-s",
          "-s#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-yn"
}

{
  "etymology_number": 2,
  "head_templates": [
    {
      "args": {
        "1": "gv",
        "2": "suffix",
        "cat2": "emphatic suffixes",
        "cat3": "",
        "g": "",
        "g2": ""
      },
      "expansion": "-yn",
      "name": "head"
    },
    {
      "args": {
        "1": "e"
      },
      "expansion": "-yn",
      "name": "gv-suffix"
    }
  ],
  "lang": "Manx",
  "lang_code": "gv",
  "pos": "suffix",
  "senses": [
    {
      "glosses": [
        "-self (emphatic)"
      ],
      "id": "en--yn-gv-suffix-lqO7Y7cW",
      "links": [
        [
          "-self",
          "-self"
        ]
      ],
      "related": [
        {
          "word": "-ish"
        },
        {
          "word": "-s"
        },
        {
          "word": "-syn"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-yn"
}

{
  "categories": [
    "Manx emphatic suffixes",
    "Manx entries with incorrect language header",
    "Manx inflectional suffixes",
    "Manx lemmas",
    "Manx suffixes",
    "Manx terms derived from Old Irish",
    "Pages using catfix",
    "Pages with 8 entries",
    "Pages with entries"
  ],
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "gv",
        "2": "sga",
        "3": "-"
      },
      "expansion": "Old Irish",
      "name": "der"
    },
    {
      "args": {
        "1": "sga",
        "2": "imbliu"
      },
      "expansion": "Old Irish imbliu",
      "name": "noncog"
    },
    {
      "args": {
        "1": "ga",
        "2": "-anna"
      },
      "expansion": "Irish -anna",
      "name": "cog"
    },
    {
      "args": {
        "1": "gd",
        "2": "-an"
      },
      "expansion": "Scottish Gaelic -an",
      "name": "cog"
    }
  ],
  "etymology_text": "Originally the Old Irish accusative and vocative plural ending of n-stem nouns. For example Old Irish imbliu, vocative/accusative plural imblenna. Cognate with Irish -anna, Scottish Gaelic -an.",
  "head_templates": [
    {
      "args": {
        "1": "gv",
        "2": "suffix",
        "cat2": "inflectional suffixes",
        "cat3": "",
        "g": "",
        "g2": ""
      },
      "expansion": "-yn",
      "name": "head"
    },
    {
      "args": {
        "1": "i"
      },
      "expansion": "-yn",
      "name": "gv-suffix"
    }
  ],
  "lang": "Manx",
  "lang_code": "gv",
  "pos": "suffix",
  "senses": [
    {
      "glosses": [
        "Pluralisation suffix, similar to English -s"
      ],
      "links": [
        [
          "English",
          "w:English language"
        ],
        [
          "-s",
          "-s#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-yn"
}

{
  "categories": [
    "Manx emphatic suffixes",
    "Manx entries with incorrect language header",
    "Manx lemmas",
    "Manx suffixes",
    "Pages using catfix",
    "Pages with 8 entries",
    "Pages with entries"
  ],
  "etymology_number": 2,
  "head_templates": [
    {
      "args": {
        "1": "gv",
        "2": "suffix",
        "cat2": "emphatic suffixes",
        "cat3": "",
        "g": "",
        "g2": ""
      },
      "expansion": "-yn",
      "name": "head"
    },
    {
      "args": {
        "1": "e"
      },
      "expansion": "-yn",
      "name": "gv-suffix"
    }
  ],
  "lang": "Manx",
  "lang_code": "gv",
  "pos": "suffix",
  "related": [
    {
      "word": "-ish"
    },
    {
      "word": "-s"
    },
    {
      "word": "-syn"
    }
  ],
  "senses": [
    {
      "glosses": [
        "-self (emphatic)"
      ],
      "links": [
        [
          "-self",
          "-self"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-yn"
}