"αποδειχθήκαν" meaning in Greek

{
  "forms": [
    {
      "form": "apodeichthíkan",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "verb form",
        "head": "",
        "sort": ""
      },
      "expansion": "αποδειχθήκαν • (apodeichthíkan)",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "αποδειχθήκαν • (apodeichthíkan)",
      "name": "el-verb-form"
    }
  ],
  "hyphenation": [
    "α‧πο‧δει‧χθή‧κα‧ν"
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Greek entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "(apodeiknýomai) passive of αποδεικνύω",
          "word": "αποδεικνύομαι"
        }
      ],
      "glosses": [
        "3rd person plural simple past form of αποδεικνύομαι (apodeiknýomai) passive of αποδεικνύω."
      ],
      "id": "en-αποδειχθήκαν-el-verb-YK2FXYJ2",
      "links": [
        [
          "simple past",
          "simple past"
        ],
        [
          "αποδεικνύομαι",
          "αποδεικνύομαι#Greek"
        ],
        [
          "αποδεικνύω",
          "αποδεικνύω#Greek"
        ]
      ],
      "synonyms": [
        {
          "roman": "apedeíchthisan",
          "tags": [
            "formal"
          ],
          "word": "απεδείχθησαν"
        },
        {
          "roman": "apodeíchthikan",
          "word": "αποδείχθηκαν"
        },
        {
          "english": "slightly formal and variants",
          "word": "αποδειχθήκαν(ε)"
        },
        {
          "roman": "apodeíchtikan",
          "word": "αποδείχτηκαν"
        },
        {
          "tags": [
            "informal",
            "variant"
          ],
          "word": "αποδειχτήκαν(ε)"
        }
      ],
      "tags": [
        "form-of",
        "past",
        "plural",
        "third-person"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/a.po.ðiˈxθi.ka.n/"
    }
  ],
  "word": "αποδειχθήκαν"
}

{
  "forms": [
    {
      "form": "apodeichthíkan",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "el",
        "2": "verb form",
        "head": "",
        "sort": ""
      },
      "expansion": "αποδειχθήκαν • (apodeichthíkan)",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "αποδειχθήκαν • (apodeichthíkan)",
      "name": "el-verb-form"
    }
  ],
  "hyphenation": [
    "α‧πο‧δει‧χθή‧κα‧ν"
  ],
  "lang": "Greek",
  "lang_code": "el",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Greek entries with incorrect language header",
        "Greek non-lemma forms",
        "Greek verb forms",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "form_of": [
        {
          "extra": "(apodeiknýomai) passive of αποδεικνύω",
          "word": "αποδεικνύομαι"
        }
      ],
      "glosses": [
        "3rd person plural simple past form of αποδεικνύομαι (apodeiknýomai) passive of αποδεικνύω."
      ],
      "links": [
        [
          "simple past",
          "simple past"
        ],
        [
          "αποδεικνύομαι",
          "αποδεικνύομαι#Greek"
        ],
        [
          "αποδεικνύω",
          "αποδεικνύω#Greek"
        ]
      ],
      "tags": [
        "form-of",
        "past",
        "plural",
        "third-person"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/a.po.ðiˈxθi.ka.n/"
    }
  ],
  "synonyms": [
    {
      "roman": "apedeíchthisan",
      "tags": [
        "formal"
      ],
      "word": "απεδείχθησαν"
    },
    {
      "roman": "apodeíchthikan",
      "word": "αποδείχθηκαν"
    },
    {
      "english": "slightly formal and variants",
      "word": "αποδειχθήκαν(ε)"
    },
    {
      "roman": "apodeíchtikan",
      "word": "αποδείχτηκαν"
    },
    {
      "tags": [
        "informal",
        "variant"
      ],
      "word": "αποδειχτήκαν(ε)"
    }
  ],
  "word": "αποδειχθήκαν"
}

{
  "called_from": "form_descriptions/1698",
  "msg": "unrecognized head form: slightly formal",
  "path": [
    "αποδειχθήκαν"
  ],
  "section": "Greek",
  "subsection": "verb",
  "title": "αποδειχθήκαν",
  "trace": ""
}