"πιστοποιώ" meaning in Greek

{
  "forms": [
    {
      "form": "pistopoió",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "πιστοποίησα",
      "tags": [
        "past"
      ]
    },
    {
      "form": "πιστοποιούμαι",
      "tags": [
        "passive"
      ]
    },
    {
      "form": "πιστοποιημένος",
      "tags": [
        "participle",
        "passive",
        "perfect"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "verbs",
        "head": "",
        "sort": "",
        "ts": ""
      },
      "expansion": "πιστοποιώ • (pistopoió)",
      "name": "head"
    },
    {
      "args": {
        "passive": "πιστοποιούμαι",
        "past": "πιστοποίησα",
        "ppp": "πιστοποιημένος"
      },
      "expansion": "πιστοποιώ • (pistopoió) (past πιστοποίησα, passive πιστοποιούμαι, ppp πιστοποιημένος)",
      "name": "el-verb"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "verb",
  "related": [
    {
      "_dis1": "0 0",
      "english": "unattested, not vouched for",
      "roman": "apistopoíitos",
      "word": "απιστοποίητος"
    },
    {
      "_dis1": "0 0",
      "english": "certification",
      "roman": "pistopoíisi",
      "tags": [
        "feminine"
      ],
      "word": "πιστοποίηση"
    },
    {
      "_dis1": "0 0",
      "english": "certificate",
      "roman": "pistopoiitikó",
      "tags": [
        "neuter"
      ],
      "word": "πιστοποιητικό"
    }
  ],
  "senses": [
    {
      "glosses": [
        "to certify, attest"
      ],
      "id": "en-πιστοποιώ-el-verb-9Y7Us-X~",
      "links": [
        [
          "certify",
          "certify"
        ],
        [
          "attest",
          "attest"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "4 96",
          "kind": "other",
          "name": "Greek entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "6 94",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "4 96",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "to vouch for"
      ],
      "id": "en-πιστοποιώ-el-verb-xEEQXsMl",
      "links": [
        [
          "vouch for",
          "vouch for"
        ]
      ]
    }
  ],
  "word": "πιστοποιώ"
}

{
  "categories": [
    "Greek entries with incorrect language header",
    "Greek lemmas",
    "Greek verbs",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "pistopoió",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "πιστοποίησα",
      "tags": [
        "past"
      ]
    },
    {
      "form": "πιστοποιούμαι",
      "tags": [
        "passive"
      ]
    },
    {
      "form": "πιστοποιημένος",
      "tags": [
        "participle",
        "passive",
        "perfect"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "verbs",
        "head": "",
        "sort": "",
        "ts": ""
      },
      "expansion": "πιστοποιώ • (pistopoió)",
      "name": "head"
    },
    {
      "args": {
        "passive": "πιστοποιούμαι",
        "past": "πιστοποίησα",
        "ppp": "πιστοποιημένος"
      },
      "expansion": "πιστοποιώ • (pistopoió) (past πιστοποίησα, passive πιστοποιούμαι, ppp πιστοποιημένος)",
      "name": "el-verb"
    }
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "verb",
  "related": [
    {
      "english": "unattested, not vouched for",
      "roman": "apistopoíitos",
      "word": "απιστοποίητος"
    },
    {
      "english": "certification",
      "roman": "pistopoíisi",
      "tags": [
        "feminine"
      ],
      "word": "πιστοποίηση"
    },
    {
      "english": "certificate",
      "roman": "pistopoiitikó",
      "tags": [
        "neuter"
      ],
      "word": "πιστοποιητικό"
    }
  ],
  "senses": [
    {
      "glosses": [
        "to certify, attest"
      ],
      "links": [
        [
          "certify",
          "certify"
        ],
        [
          "attest",
          "attest"
        ]
      ]
    },
    {
      "glosses": [
        "to vouch for"
      ],
      "links": [
        [
          "vouch for",
          "vouch for"
        ]
      ]
    }
  ],
  "word": "πιστοποιώ"
}