"τετραίνω" 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": [
    {
      "word": "τρῆμα"
    },
    {
      "word": "τρῆσις"
    }
  ],
  "etymology_texts": [
    "Voir τείρω, τρύω (« frotter, user »)."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "verb",
  "pos_title": "Verbe",
  "raw_tags": [
    "τετραίνω, tetraínô"
  ],
  "senses": [
    {
      "examples": [
        {
          "text": "χάσμα τῆς γῆς τετρημένον"
        }
      ],
      "glosses": [
        "Trouer, forer."
      ],
      "id": "fr-τετραίνω-grc-verb-K6M3jI2K"
    }
  ],
  "synonyms": [
    {
      "word": "τρυπάω"
    }
  ],
  "word": "τετραίνω"
}

{
  "categories": [
    "Verbes en grec ancien",
    "Wiktionnaire:Conjugaisons manquantes en grec ancien",
    "grec ancien"
  ],
  "derived": [
    {
      "word": "τρῆμα"
    },
    {
      "word": "τρῆσις"
    }
  ],
  "etymology_texts": [
    "Voir τείρω, τρύω (« frotter, user »)."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "verb",
  "pos_title": "Verbe",
  "raw_tags": [
    "τετραίνω, tetraínô"
  ],
  "senses": [
    {
      "examples": [
        {
          "text": "χάσμα τῆς γῆς τετρημένον"
        }
      ],
      "glosses": [
        "Trouer, forer."
      ]
    }
  ],
  "synonyms": [
    {
      "word": "τρυπάω"
    }
  ],
  "word": "τετραίνω"
}