"in-" meaning in French

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "bor",
        "3": "la>in->un",
        "id": "un",
        "text": "++",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *ne\nProto-Indo-European *n̥-\nProto-Italic *ən-\nLatin in-bor.\nFrench in-\nBorrowed from Latin in-, from Proto-Italic *ən-, from Proto-Indo-European *n̥-, from *ne.",
      "name": "etymon"
    }
  ],
  "etymology_text": "Etymology tree\nProto-Indo-European *ne\nProto-Indo-European *n̥-\nProto-Italic *ən-\nLatin in-bor.\nFrench in-\nBorrowed from Latin in-, from Proto-Italic *ən-, from Proto-Indo-European *n̥-, from *ne.",
  "head_templates": [
    {
      "args": {},
      "expansion": "in-",
      "name": "fr-prefix"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with etymology texts",
          "parents": [
            "Entries with etymology texts",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "French entries with etymology trees",
          "parents": [
            "Entries with etymology trees",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 22 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "in-; un- (indicates negation)"
      ],
      "id": "en-in--fr-prefix-1o4u3ODL",
      "links": [
        [
          "in-",
          "in-#English"
        ],
        [
          "un-",
          "un-"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɛ̃/",
      "note": "before a consonant"
    },
    {
      "ipa": "/in/",
      "note": "before a consonant"
    },
    {
      "audio": "LL-Q150 (fra)-WikiLucas00-in-.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/6/67/LL-Q150_%28fra%29-WikiLucas00-in-.wav/LL-Q150_%28fra%29-WikiLucas00-in-.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/6/67/LL-Q150_%28fra%29-WikiLucas00-in-.wav/LL-Q150_%28fra%29-WikiLucas00-in-.wav.ogg"
    }
  ],
  "word": "in-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "bor",
        "3": "la>in->un",
        "id": "un",
        "text": "++",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *ne\nProto-Indo-European *n̥-\nProto-Italic *ən-\nLatin in-bor.\nFrench in-\nBorrowed from Latin in-, from Proto-Italic *ən-, from Proto-Indo-European *n̥-, from *ne.",
      "name": "etymon"
    }
  ],
  "etymology_text": "Etymology tree\nProto-Indo-European *ne\nProto-Indo-European *n̥-\nProto-Italic *ən-\nLatin in-bor.\nFrench in-\nBorrowed from Latin in-, from Proto-Italic *ən-, from Proto-Indo-European *n̥-, from *ne.",
  "head_templates": [
    {
      "args": {},
      "expansion": "in-",
      "name": "fr-prefix"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "French 1-syllable words",
        "French entries with etymology texts",
        "French entries with etymology trees",
        "French entries with incorrect language header",
        "French lemmas",
        "French prefixes",
        "French terms borrowed from Latin",
        "French terms derived from Latin",
        "French terms derived from Proto-Indo-European",
        "French terms derived from Proto-Italic",
        "French terms with IPA pronunciation",
        "Pages using catfix",
        "Pages with 22 entries",
        "Pages with entries"
      ],
      "glosses": [
        "in-; un- (indicates negation)"
      ],
      "links": [
        [
          "in-",
          "in-#English"
        ],
        [
          "un-",
          "un-"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ɛ̃/",
      "note": "before a consonant"
    },
    {
      "ipa": "/in/",
      "note": "before a consonant"
    },
    {
      "audio": "LL-Q150 (fra)-WikiLucas00-in-.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/6/67/LL-Q150_%28fra%29-WikiLucas00-in-.wav/LL-Q150_%28fra%29-WikiLucas00-in-.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/6/67/LL-Q150_%28fra%29-WikiLucas00-in-.wav/LL-Q150_%28fra%29-WikiLucas00-in-.wav.ogg"
    }
  ],
  "word": "in-"
}