"λευκαίνω" meaning in Grec ancien

{
  "categories": [
    {
      "kind": "other",
      "name": "Verbes en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Wiktionnaire:Conjugaisons manquantes en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Grec ancien",
      "orig": "grec ancien",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "lang": "Grec",
      "lang_code": "el",
      "word": "λευκαίνω"
    }
  ],
  "etymology_texts": [
    "De λευκός, leukós (« blanc »)."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "verb",
  "pos_title": "Verbe",
  "raw_tags": [
    "λευκαίνω, leukaínô, futur : -, aoriste : -, parfait : -, parfait passif : -, aoriste passif : -"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en grec ancien",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Euripide",
          "text": "ἠὼς λευκαίνει φῶς.",
          "translation": "l’aurore blanchit sa lumière (se fait plus claire)."
        }
      ],
      "glosses": [
        "Blanchir."
      ],
      "id": "fr-λευκαίνω-grc-verb-XCprmoN1"
    }
  ],
  "synonyms": [
    {
      "word": "λευκόω"
    }
  ],
  "word": "λευκαίνω"
}

{
  "categories": [
    "Verbes en grec ancien",
    "Wiktionnaire:Conjugaisons manquantes en grec ancien",
    "grec ancien"
  ],
  "derived": [
    {
      "lang": "Grec",
      "lang_code": "el",
      "word": "λευκαίνω"
    }
  ],
  "etymology_texts": [
    "De λευκός, leukós (« blanc »)."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "verb",
  "pos_title": "Verbe",
  "raw_tags": [
    "λευκαίνω, leukaínô, futur : -, aoriste : -, parfait : -, parfait passif : -, aoriste passif : -"
  ],
  "senses": [
    {
      "categories": [
        "Exemples en grec ancien"
      ],
      "examples": [
        {
          "ref": "Euripide",
          "text": "ἠὼς λευκαίνει φῶς.",
          "translation": "l’aurore blanchit sa lumière (se fait plus claire)."
        }
      ],
      "glosses": [
        "Blanchir."
      ]
    }
  ],
  "synonyms": [
    {
      "word": "λευκόω"
    }
  ],
  "word": "λευκαίνω"
}