"чрънъ" 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": "Mots en vieux slave issus d’un mot en proto-slave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Vieux slave",
      "orig": "vieux slave",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Étymologies en vieux slave incluant une reconstruction",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "lang": "Bulgare",
      "lang_code": "bg",
      "word": "черен"
    },
    {
      "lang": "Polonais",
      "lang_code": "pl",
      "word": "czarny"
    },
    {
      "lang": "Russe",
      "lang_code": "ru",
      "word": "чёрный"
    },
    {
      "lang": "Slovaque",
      "lang_code": "sk",
      "word": "čierny"
    },
    {
      "lang": "Slovène",
      "lang_code": "sl",
      "word": "črn"
    },
    {
      "lang": "Tchèque",
      "lang_code": "cs",
      "word": "černý"
    }
  ],
  "etymology_texts": [
    "Du proto-slave *čьrnъ, apparenté au sanscrit कृष्ण, kṛṣṇá, de là Krishna, de même radical *ker- que le latin car-bo (« charbon »)."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "adj",
  "pos_title": "Adjectif",
  "raw_tags": [
    "črŭnŭ"
  ],
  "related": [
    {
      "roman": "črĭnŭ",
      "word": "чрьнъ"
    },
    {
      "raw_tags": [
        "Glagolitique"
      ],
      "word": "ⱍⱃⱏⱀⱏ"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Noir."
      ],
      "id": "fr-чрънъ-cu-adj-9mA9J44o"
    }
  ],
  "word": "чрънъ"
}

{
  "categories": [
    "Adjectifs en vieux slave",
    "Couleurs en vieux slave",
    "Mots en vieux slave issus d’un mot en proto-slave",
    "vieux slave",
    "Étymologies en vieux slave incluant une reconstruction"
  ],
  "derived": [
    {
      "lang": "Bulgare",
      "lang_code": "bg",
      "word": "черен"
    },
    {
      "lang": "Polonais",
      "lang_code": "pl",
      "word": "czarny"
    },
    {
      "lang": "Russe",
      "lang_code": "ru",
      "word": "чёрный"
    },
    {
      "lang": "Slovaque",
      "lang_code": "sk",
      "word": "čierny"
    },
    {
      "lang": "Slovène",
      "lang_code": "sl",
      "word": "črn"
    },
    {
      "lang": "Tchèque",
      "lang_code": "cs",
      "word": "černý"
    }
  ],
  "etymology_texts": [
    "Du proto-slave *čьrnъ, apparenté au sanscrit कृष्ण, kṛṣṇá, de là Krishna, de même radical *ker- que le latin car-bo (« charbon »)."
  ],
  "lang": "Vieux slave",
  "lang_code": "cu",
  "pos": "adj",
  "pos_title": "Adjectif",
  "raw_tags": [
    "črŭnŭ"
  ],
  "related": [
    {
      "roman": "črĭnŭ",
      "word": "чрьнъ"
    },
    {
      "raw_tags": [
        "Glagolitique"
      ],
      "word": "ⱍⱃⱏⱀⱏ"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Noir."
      ]
    }
  ],
  "word": "чрънъ"
}