"зєлєнъ" meaning in Vieux slave

{
  "categories": [
    {
      "kind": "other",
      "name": "Adjectifs en vieux slave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Couleurs en vieux slave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Vieux slave",
      "orig": "vieux slave",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "lang": "Bulgare",
      "lang_code": "bg",
      "word": "зелен"
    },
    {
      "lang": "Polonais",
      "lang_code": "pl",
      "word": "zielony"
    },
    {
      "lang": "Russe",
      "lang_code": "ru",
      "word": "зелёный"
    },
    {
      "lang": "Slovaque",
      "lang_code": "sk",
      "word": "zelený"
    },
    {
      "lang": "Slovène",
      "lang_code": "sl",
      "word": "zelen"
    },
    {
      "lang": "Tchèque",
      "lang_code": "cs",
      "word": "zelený"
    }
  ],
  "etymology_texts": [
    "Adjectivation de зєлиѥ (« végétal [plante verte] »)."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "adj",
  "pos_title": "Adjectif",
  "senses": [
    {
      "glosses": [
        "Vert."
      ],
      "id": "fr-зєлєнъ-cu-adj-nHidgarr"
    }
  ],
  "word": "зєлєнъ"
}

{
  "categories": [
    "Adjectifs en vieux slave",
    "Couleurs en vieux slave",
    "vieux slave"
  ],
  "derived": [
    {
      "lang": "Bulgare",
      "lang_code": "bg",
      "word": "зелен"
    },
    {
      "lang": "Polonais",
      "lang_code": "pl",
      "word": "zielony"
    },
    {
      "lang": "Russe",
      "lang_code": "ru",
      "word": "зелёный"
    },
    {
      "lang": "Slovaque",
      "lang_code": "sk",
      "word": "zelený"
    },
    {
      "lang": "Slovène",
      "lang_code": "sl",
      "word": "zelen"
    },
    {
      "lang": "Tchèque",
      "lang_code": "cs",
      "word": "zelený"
    }
  ],
  "etymology_texts": [
    "Adjectivation de зєлиѥ (« végétal [plante verte] »)."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "adj",
  "pos_title": "Adjectif",
  "senses": [
    {
      "glosses": [
        "Vert."
      ]
    }
  ],
  "word": "зєлєнъ"
}