"-ondo" meaning in Basque

{
  "head_templates": [
    {
      "args": {
        "1": "eu",
        "2": "suffix"
      },
      "expansion": "-ondo",
      "name": "head"
    }
  ],
  "lang": "Basque",
  "lang_code": "eu",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "_dis": "72 28",
          "kind": "other",
          "name": "Basque entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "90 10",
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "83 17",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "92 8",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "sagar (“apple”) + -ondo → sagarrondo (“apple tree”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Forms tree names from fruit names."
      ],
      "id": "en--ondo-eu-suffix-k2OC0tqG",
      "tags": [
        "morpheme"
      ]
    },
    {
      "examples": [
        {
          "text": "aditz (“verb”) + -ondo → aditzondo (“adverb”)",
          "type": "example"
        }
      ],
      "glosses": [
        "next to, adjacent"
      ],
      "id": "en--ondo-eu-suffix-v8KoYb~I",
      "links": [
        [
          "next to",
          "next to"
        ],
        [
          "adjacent",
          "adjacent"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-ondo"
}

{
  "categories": [
    "Basque entries with incorrect language header",
    "Basque lemmas",
    "Basque suffixes",
    "Pages using catfix",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "head_templates": [
    {
      "args": {
        "1": "eu",
        "2": "suffix"
      },
      "expansion": "-ondo",
      "name": "head"
    }
  ],
  "lang": "Basque",
  "lang_code": "eu",
  "pos": "suffix",
  "senses": [
    {
      "examples": [
        {
          "text": "sagar (“apple”) + -ondo → sagarrondo (“apple tree”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Forms tree names from fruit names."
      ],
      "tags": [
        "morpheme"
      ]
    },
    {
      "examples": [
        {
          "text": "aditz (“verb”) + -ondo → aditzondo (“adverb”)",
          "type": "example"
        }
      ],
      "glosses": [
        "next to, adjacent"
      ],
      "links": [
        [
          "next to",
          "next to"
        ],
        [
          "adjacent",
          "adjacent"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-ondo"
}