"-ero" meaning in Basque

{
  "etymology_text": "Shift from oro (“every, all”).",
  "head_templates": [
    {
      "args": {
        "1": "eu",
        "2": "suffix"
      },
      "expansion": "-ero",
      "name": "head"
    }
  ],
  "lang": "Basque",
  "lang_code": "eu",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Basque entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 8 entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "gau (“night”) + -ero → gauero (“every night”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Used to form adverbs from nouns of time; every, each"
      ],
      "id": "en--ero-eu-suffix-tf1lovrU",
      "links": [
        [
          "every",
          "every"
        ],
        [
          "each",
          "each"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-ero"
}

{
  "etymology_text": "Shift from oro (“every, all”).",
  "head_templates": [
    {
      "args": {
        "1": "eu",
        "2": "suffix"
      },
      "expansion": "-ero",
      "name": "head"
    }
  ],
  "lang": "Basque",
  "lang_code": "eu",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Basque entries with incorrect language header",
        "Basque lemmas",
        "Basque suffixes",
        "Pages with 8 entries"
      ],
      "examples": [
        {
          "text": "gau (“night”) + -ero → gauero (“every night”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Used to form adverbs from nouns of time; every, each"
      ],
      "links": [
        [
          "every",
          "every"
        ],
        [
          "each",
          "each"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "-ero"
}