"ope legis" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "la",
        "3": "ope legis"
      },
      "expansion": "Borrowed from Latin ope legis",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from Latin ope legis.",
  "head_templates": [
    {
      "args": {},
      "expansion": "ope legis",
      "name": "it-adv"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "it",
          "name": "Law",
          "orig": "it:Law",
          "parents": [
            "Justice",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "by law"
      ],
      "id": "en-ope_legis-it-adv-fP~4nPXa",
      "links": [
        [
          "law",
          "law#English"
        ],
        [
          "law",
          "law"
        ]
      ],
      "raw_glosses": [
        "(law) by law"
      ],
      "synonyms": [
        {
          "word": "per legge"
        }
      ],
      "topics": [
        "law"
      ]
    }
  ],
  "word": "ope legis"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "la",
        "3": "ope legis"
      },
      "expansion": "Borrowed from Latin ope legis",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from Latin ope legis.",
  "head_templates": [
    {
      "args": {},
      "expansion": "ope legis",
      "name": "it-adv"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Italian adverbs",
        "Italian entries with incorrect language header",
        "Italian lemmas",
        "Italian multiword terms",
        "Italian terms borrowed from Latin",
        "Italian terms derived from Latin",
        "Pages with 1 entry",
        "Pages with entries",
        "it:Law"
      ],
      "glosses": [
        "by law"
      ],
      "links": [
        [
          "law",
          "law#English"
        ],
        [
          "law",
          "law"
        ]
      ],
      "raw_glosses": [
        "(law) by law"
      ],
      "synonyms": [
        {
          "word": "per legge"
        }
      ],
      "topics": [
        "law"
      ]
    }
  ],
  "word": "ope legis"
}