"επανα-" meaning in Grec

{
  "categories": [
    {
      "kind": "other",
      "name": "Préfixes en grec",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Grec",
      "orig": "grec",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "raw_tags": [
        "révolution"
      ],
      "word": "επανάσταση"
    },
    {
      "raw_tags": [
        "réédition"
      ],
      "word": "επανέκδοση"
    },
    {
      "raw_tags": [
        "redresser, réparer"
      ],
      "word": "επανορθώνω"
    }
  ],
  "etymology_texts": [
    "Des prépositions ἐπί et ανά."
  ],
  "forms": [
    {
      "form": "επαν-",
      "raw_tags": [
        "devant une voyelle"
      ]
    }
  ],
  "lang": "Grec",
  "lang_code": "el",
  "pos": "prefix",
  "pos_title": "Préfixe",
  "senses": [
    {
      "glosses": [
        "Préfixe exprimant la répétition, re-."
      ],
      "id": "fr-επανα--el-prefix-iXHtVfEw"
    }
  ],
  "sounds": [
    {
      "ipa": "\\ɛ.pa.na\\"
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "επανα-"
}

{
  "categories": [
    "Préfixes en grec",
    "grec"
  ],
  "derived": [
    {
      "raw_tags": [
        "révolution"
      ],
      "word": "επανάσταση"
    },
    {
      "raw_tags": [
        "réédition"
      ],
      "word": "επανέκδοση"
    },
    {
      "raw_tags": [
        "redresser, réparer"
      ],
      "word": "επανορθώνω"
    }
  ],
  "etymology_texts": [
    "Des prépositions ἐπί et ανά."
  ],
  "forms": [
    {
      "form": "επαν-",
      "raw_tags": [
        "devant une voyelle"
      ]
    }
  ],
  "lang": "Grec",
  "lang_code": "el",
  "pos": "prefix",
  "pos_title": "Préfixe",
  "senses": [
    {
      "glosses": [
        "Préfixe exprimant la répétition, re-."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\ɛ.pa.na\\"
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "επανα-"
}