"dia-" meaning in French

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "grc",
        "3": "-"
      },
      "expansion": "Ancient Greek",
      "name": "uder"
    },
    {
      "args": {
        "1": "grc",
        "2": "δια-"
      },
      "expansion": "δια- (dia-)",
      "name": "m"
    },
    {
      "args": {
        "1": "grc",
        "2": "διά",
        "3": "",
        "4": "through, across, by, over"
      },
      "expansion": "διά (diá, “through, across, by, over”)",
      "name": "m"
    }
  ],
  "etymology_text": "From Ancient Greek prefix δια- (dia-), from διά (diá, “through, across, by, over”).",
  "head_templates": [
    {
      "args": {},
      "expansion": "dia-",
      "name": "fr-prefix"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "French undefined derivations",
          "parents": [
            "Undefined derivations",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "dia-"
      ],
      "id": "en-dia--fr-prefix-PGHt8lhk",
      "links": [
        [
          "dia-",
          "dia-#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/dja/"
    }
  ],
  "word": "dia-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "grc",
        "3": "-"
      },
      "expansion": "Ancient Greek",
      "name": "uder"
    },
    {
      "args": {
        "1": "grc",
        "2": "δια-"
      },
      "expansion": "δια- (dia-)",
      "name": "m"
    },
    {
      "args": {
        "1": "grc",
        "2": "διά",
        "3": "",
        "4": "through, across, by, over"
      },
      "expansion": "διά (diá, “through, across, by, over”)",
      "name": "m"
    }
  ],
  "etymology_text": "From Ancient Greek prefix δια- (dia-), from διά (diá, “through, across, by, over”).",
  "head_templates": [
    {
      "args": {},
      "expansion": "dia-",
      "name": "fr-prefix"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "French 1-syllable words",
        "French entries with incorrect language header",
        "French lemmas",
        "French prefixes",
        "French terms derived from Ancient Greek",
        "French terms with IPA pronunciation",
        "French undefined derivations"
      ],
      "glosses": [
        "dia-"
      ],
      "links": [
        [
          "dia-",
          "dia-#English"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/dja/"
    }
  ],
  "word": "dia-"
}