"γρῦ" meaning in Grec ancien

{
  "categories": [
    {
      "kind": "other",
      "name": "Mots en grec ancien issus d’une onomatopée",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Onomatopées en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Grec ancien",
      "orig": "grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Étymologies en grec ancien incluant une reconstruction",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "translation": "porc",
      "word": "γρῦλος"
    },
    {
      "translation": "grouiner",
      "word": "γρυλίζω"
    },
    {
      "translation": "grouiner",
      "word": "γρύζω"
    }
  ],
  "etymology_texts": [
    "D’une onomatopée *gru."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "onomatopoeia",
  "pos_title": "Onomatopée",
  "raw_tags": [
    "γρῦ, grû"
  ],
  "senses": [
    {
      "examples": [
        {
          "ref": "Aristote",
          "text": "οὐδὲ γρῦἀποκρίνεσθαι",
          "translation": "Ne pas répondre, même en grognant."
        }
      ],
      "glosses": [
        "Grouinement."
      ],
      "id": "fr-γρῦ-grc-onomatopoeia-OesBlZAT"
    }
  ],
  "tags": [
    "onomatopoeic"
  ],
  "word": "γρῦ"
}

{
  "categories": [
    "Mots en grec ancien issus d’une onomatopée",
    "Onomatopées en grec ancien",
    "grec ancien",
    "Étymologies en grec ancien incluant une reconstruction"
  ],
  "derived": [
    {
      "translation": "porc",
      "word": "γρῦλος"
    },
    {
      "translation": "grouiner",
      "word": "γρυλίζω"
    },
    {
      "translation": "grouiner",
      "word": "γρύζω"
    }
  ],
  "etymology_texts": [
    "D’une onomatopée *gru."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "onomatopoeia",
  "pos_title": "Onomatopée",
  "raw_tags": [
    "γρῦ, grû"
  ],
  "senses": [
    {
      "examples": [
        {
          "ref": "Aristote",
          "text": "οὐδὲ γρῦἀποκρίνεσθαι",
          "translation": "Ne pas répondre, même en grognant."
        }
      ],
      "glosses": [
        "Grouinement."
      ]
    }
  ],
  "tags": [
    "onomatopoeic"
  ],
  "word": "γρῦ"
}