"-իս" meaning in Armenian

{
  "forms": [
    {
      "form": "-is",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "hy",
        "2": "suffix"
      },
      "expansion": "-իս • (-is)",
      "name": "head"
    }
  ],
  "lang": "Armenian",
  "lang_code": "hy",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Armenian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Armenian entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Armenian terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with raw sortkeys",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "to like",
          "text": "սիրել (sirel)"
        }
      ],
      "glosses": [
        "Appended to the verb to form its second present participle."
      ],
      "id": "en--իս-hy-suffix-7KdONdml",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[is]",
      "tags": [
        "Eastern-Armenian",
        "standard"
      ]
    },
    {
      "ipa": "[is]",
      "tags": [
        "Western-Armenian",
        "standard"
      ]
    }
  ],
  "word": "-իս"
}

{
  "forms": [
    {
      "form": "-is",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "hy",
        "2": "suffix"
      },
      "expansion": "-իս • (-is)",
      "name": "head"
    }
  ],
  "lang": "Armenian",
  "lang_code": "hy",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Armenian entries with incorrect language header",
        "Armenian entries with language name categories using raw markup",
        "Armenian lemmas",
        "Armenian suffixes",
        "Armenian terms with IPA pronunciation",
        "Armenian terms with redundant sortkeys",
        "Pages with raw sortkeys"
      ],
      "examples": [
        {
          "english": "to like",
          "text": "սիրել (sirel)"
        }
      ],
      "glosses": [
        "Appended to the verb to form its second present participle."
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[is]",
      "tags": [
        "Eastern-Armenian",
        "standard"
      ]
    },
    {
      "ipa": "[is]",
      "tags": [
        "Western-Armenian",
        "standard"
      ]
    }
  ],
  "word": "-իս"
}