"-εισ-" meaning in Greek

{
  "etymology_text": "Preposition εις in synthesis, at middle position -εισ- (-eis-).",
  "forms": [
    {
      "form": "-eis-",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "-εισ- • (-eis-)",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "-εισ- • (-eis-)",
      "name": "el-prefix"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Greek entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "παρ- + -εισ- + φρέω > παρεισφρέω\n/par- -is- ˈfreo/ > /pa.riˈsfre.o/\nnear + in- + bring > infiltrate",
          "type": "example"
        },
        {
          "text": "παρ- + -εισ- + δύω > παρεισδύω\n/par- -is- ˈðio/ > /pa.rizˈði.o/\nnear + in- + plunge > infiltrate",
          "type": "example"
        }
      ],
      "glosses": [
        "The prefix εισ- in middle position"
      ],
      "id": "en--εισ--el-prefix-DhmdPVFS",
      "links": [
        [
          "prefix εισ-",
          "εισ-#Greek"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/is/"
    },
    {
      "ipa": "/iz/"
    }
  ],
  "word": "-εισ-"
}

{
  "etymology_text": "Preposition εις in synthesis, at middle position -εισ- (-eis-).",
  "forms": [
    {
      "form": "-eis-",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "-εισ- • (-eis-)",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "-εισ- • (-eis-)",
      "name": "el-prefix"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "Greek entries with incorrect language header",
        "Greek lemmas",
        "Greek prefixes",
        "Greek terms with IPA pronunciation",
        "Greek terms with usage examples"
      ],
      "examples": [
        {
          "text": "παρ- + -εισ- + φρέω > παρεισφρέω\n/par- -is- ˈfreo/ > /pa.riˈsfre.o/\nnear + in- + bring > infiltrate",
          "type": "example"
        },
        {
          "text": "παρ- + -εισ- + δύω > παρεισδύω\n/par- -is- ˈðio/ > /pa.rizˈði.o/\nnear + in- + plunge > infiltrate",
          "type": "example"
        }
      ],
      "glosses": [
        "The prefix εισ- in middle position"
      ],
      "links": [
        [
          "prefix εισ-",
          "εισ-#Greek"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/is/"
    },
    {
      "ipa": "/iz/"
    }
  ],
  "word": "-εισ-"
}