"-ier" meaning in German

{
  "etymology_templates": [
    {
      "args": {
        "1": "de",
        "2": "fr",
        "3": "-ier"
      },
      "expansion": "Borrowed from French -ier",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from French -ier.",
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "suffix",
        "g": "m"
      },
      "expansion": "-ier m",
      "name": "head"
    }
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "German entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 7 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Kneipe + -ier → Kneipier",
          "type": "example"
        },
        {
          "text": "Pleite + -ier → Pleitier",
          "type": "example"
        }
      ],
      "glosses": [
        "A noun-forming suffix, used especially to render similar suffixes in borrowings from French."
      ],
      "id": "en--ier-de-suffix-AwsJA7iT",
      "tags": [
        "masculine",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/i̯eː/"
    },
    {
      "ipa": "/jeː/"
    }
  ],
  "word": "-ier"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "de",
        "2": "fr",
        "3": "-ier"
      },
      "expansion": "Borrowed from French -ier",
      "name": "bor+"
    }
  ],
  "etymology_text": "Borrowed from French -ier.",
  "head_templates": [
    {
      "args": {
        "1": "de",
        "2": "suffix",
        "g": "m"
      },
      "expansion": "-ier m",
      "name": "head"
    }
  ],
  "lang": "German",
  "lang_code": "de",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "German entries with incorrect language header",
        "German lemmas",
        "German masculine suffixes",
        "German suffixes",
        "German terms borrowed from French",
        "German terms derived from French",
        "Pages with 7 entries",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "Kneipe + -ier → Kneipier",
          "type": "example"
        },
        {
          "text": "Pleite + -ier → Pleitier",
          "type": "example"
        }
      ],
      "glosses": [
        "A noun-forming suffix, used especially to render similar suffixes in borrowings from French."
      ],
      "tags": [
        "masculine",
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/i̯eː/"
    },
    {
      "ipa": "/jeː/"
    }
  ],
  "word": "-ier"
}