"δ’" meaning in Grec ancien

{
  "categories": [
    {
      "kind": "other",
      "name": "Particules en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Grec ancien",
      "orig": "grec ancien",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "particle",
  "pos_title": "Particule",
  "senses": [
    {
      "glosses": [
        "Élision de la particule δέ."
      ],
      "id": "fr-δ’-grc-particle-eLajs4ga"
    }
  ],
  "word": "δ’"
}

{
  "categories": [
    "Particules en grec ancien",
    "grec ancien"
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "particle",
  "pos_title": "Particule",
  "senses": [
    {
      "glosses": [
        "Élision de la particule δέ."
      ]
    }
  ],
  "word": "δ’"
}