"da" meaning in Romansch

{
  "etymology_templates": [
    {
      "args": {
        "1": "rm",
        "2": "la",
        "3": "de",
        "4": "dē"
      },
      "expansion": "Latin dē",
      "name": "der"
    }
  ],
  "etymology_text": "From Latin dē.",
  "head_templates": [
    {
      "args": {
        "1": "rm",
        "2": "prepositions"
      },
      "expansion": "da",
      "name": "head"
    }
  ],
  "lang": "Romansch",
  "lang_code": "rm",
  "pos": "prep",
  "senses": [
    {
      "categories": [
        {
          "_dis": "100 0",
          "kind": "other",
          "name": "Romansch entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "63 37",
          "kind": "other",
          "name": "Romansch prepositions",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "of, from"
      ],
      "id": "en-da-rm-prep-wtu1cerV",
      "links": [
        [
          "of",
          "of"
        ],
        [
          "from",
          "from"
        ]
      ]
    },
    {
      "glosses": [
        "about"
      ],
      "id": "en-da-rm-prep-pCYuHJvL",
      "links": [
        [
          "about",
          "about"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "_dis1": "0 0",
      "tags": [
        "before-vowel"
      ],
      "word": "dad"
    }
  ],
  "word": "da"
}

{
  "categories": [
    "Romansch entries with incorrect language header",
    "Romansch lemmas",
    "Romansch prepositions",
    "Romansch terms derived from Latin",
    "za:Body parts",
    "za:Male family members"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "rm",
        "2": "la",
        "3": "de",
        "4": "dē"
      },
      "expansion": "Latin dē",
      "name": "der"
    }
  ],
  "etymology_text": "From Latin dē.",
  "head_templates": [
    {
      "args": {
        "1": "rm",
        "2": "prepositions"
      },
      "expansion": "da",
      "name": "head"
    }
  ],
  "lang": "Romansch",
  "lang_code": "rm",
  "pos": "prep",
  "senses": [
    {
      "glosses": [
        "of, from"
      ],
      "links": [
        [
          "of",
          "of"
        ],
        [
          "from",
          "from"
        ]
      ]
    },
    {
      "glosses": [
        "about"
      ],
      "links": [
        [
          "about",
          "about"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "before-vowel"
      ],
      "word": "dad"
    }
  ],
  "word": "da"
}