"ὤνιος" meaning in Ancient Greek

{
  "etymology_templates": [
    {
      "args": {
        "1": "grc",
        "2": "ὠνέομαι",
        "3": "-ιος"
      },
      "expansion": "ὠνέομαι (ōnéomai) + -ιος (-ios)",
      "name": "af"
    }
  ],
  "etymology_text": "From ὠνέομαι (ōnéomai) + -ιος (-ios).",
  "forms": [
    {
      "form": "ṓnios",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ὤνιον",
      "tags": [
        "neuter"
      ]
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Ancient Greek entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Ancient Greek terms suffixed with -ιος",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "for sale"
      ],
      "id": "en-ὤνιος-grc-adj-VQPShFbc",
      "links": [
        [
          "for sale",
          "for sale"
        ]
      ]
    }
  ],
  "word": "ὤνιος"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "grc",
        "2": "ὠνέομαι",
        "3": "-ιος"
      },
      "expansion": "ὠνέομαι (ōnéomai) + -ιος (-ios)",
      "name": "af"
    }
  ],
  "etymology_text": "From ὠνέομαι (ōnéomai) + -ιος (-ios).",
  "forms": [
    {
      "form": "ṓnios",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ὤνιον",
      "tags": [
        "neuter"
      ]
    }
  ],
  "lang": "Ancient Greek",
  "lang_code": "grc",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Ancient Greek adjectives",
        "Ancient Greek entries with incorrect language header",
        "Ancient Greek lemmas",
        "Ancient Greek proparoxytone terms",
        "Ancient Greek terms suffixed with -ιος",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "for sale"
      ],
      "links": [
        [
          "for sale",
          "for sale"
        ]
      ]
    }
  ],
  "word": "ὤνιος"
}