"δέον" meaning in Grec ancien

{
  "categories": [
    {
      "kind": "other",
      "name": "Adjectifs en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Grec ancien",
      "orig": "grec ancien",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Participe passé neutre adjectivé du verbe impersonnel δεῖ, deî (« il faut »)."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "adj",
  "pos_title": "Adjectif",
  "raw_tags": [
    "δέον, déon"
  ],
  "senses": [
    {
      "examples": [
        {
          "text": "τὰ δέοντα, les devoirs, les avantages."
        },
        {
          "text": "ἐν δέοντι, à temps [au temps opportun]."
        }
      ],
      "glosses": [
        "Nécessaire, correct."
      ],
      "id": "fr-δέον-grc-adj-BCIMM75w"
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "δέον"
}

{
  "categories": [
    "Adjectifs en grec ancien",
    "grec ancien"
  ],
  "etymology_texts": [
    "Participe passé neutre adjectivé du verbe impersonnel δεῖ, deî (« il faut »)."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "adj",
  "pos_title": "Adjectif",
  "raw_tags": [
    "δέον, déon"
  ],
  "senses": [
    {
      "examples": [
        {
          "text": "τὰ δέοντα, les devoirs, les avantages."
        },
        {
          "text": "ἐν δέοντι, à temps [au temps opportun]."
        }
      ],
      "glosses": [
        "Nécessaire, correct."
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "word": "δέον"
}