"-ա-" meaning in Middle Armenian

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "hy",
            "2": "-ա-"
          },
          "expansion": "Armenian: -ա- (-a-)",
          "name": "desc"
        }
      ],
      "text": "Armenian: -ա- (-a-)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "axm",
        "2": "xcl",
        "3": "-ա-"
      },
      "expansion": "Old Armenian -ա- (-a-)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Old Armenian -ա- (-a-).",
  "forms": [
    {
      "form": "-a-",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "axm",
        "2": "interfix"
      },
      "expansion": "-ա- • (-a-)",
      "name": "head"
    }
  ],
  "lang": "Middle Armenian",
  "lang_code": "axm",
  "pos": "interfix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Middle Armenian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Middle Armenian interfixes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 3 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "smelling like mould",
          "roman": "mglahot",
          "text": "մգլահոտ",
          "type": "example"
        }
      ],
      "glosses": [
        "an agglutinating interfix"
      ],
      "id": "en--ա--axm-interfix-ebp3Kyi3",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-ա-"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "hy",
            "2": "-ա-"
          },
          "expansion": "Armenian: -ա- (-a-)",
          "name": "desc"
        }
      ],
      "text": "Armenian: -ա- (-a-)"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "axm",
        "2": "xcl",
        "3": "-ա-"
      },
      "expansion": "Old Armenian -ա- (-a-)",
      "name": "inh"
    }
  ],
  "etymology_text": "From Old Armenian -ա- (-a-).",
  "forms": [
    {
      "form": "-a-",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "axm",
        "2": "interfix"
      },
      "expansion": "-ա- • (-a-)",
      "name": "head"
    }
  ],
  "lang": "Middle Armenian",
  "lang_code": "axm",
  "pos": "interfix",
  "senses": [
    {
      "categories": [
        "Middle Armenian entries with incorrect language header",
        "Middle Armenian interfixes",
        "Middle Armenian lemmas",
        "Middle Armenian terms derived from Old Armenian",
        "Middle Armenian terms inherited from Old Armenian",
        "Middle Armenian terms with usage examples",
        "Pages with 3 entries",
        "Pages with entries"
      ],
      "examples": [
        {
          "english": "smelling like mould",
          "roman": "mglahot",
          "text": "մգլահոտ",
          "type": "example"
        }
      ],
      "glosses": [
        "an agglutinating interfix"
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-ա-"
}