"-bb" meaning in Hungarian

{
  "etymology_templates": [
    {
      "args": {
        "1": "hu",
        "2": "fiu-pro",
        "3": "-"
      },
      "expansion": "Proto-Finno-Ugric",
      "name": "inh"
    },
    {
      "args": {
        "1": "fi",
        "2": "-mpi"
      },
      "expansion": "Finnish -mpi",
      "name": "cog"
    }
  ],
  "etymology_text": "Of Proto-Finno-Ugric origin. Cognates include Finnish -mpi.",
  "head_templates": [
    {
      "args": {
        "1": "hu",
        "2": "suffix"
      },
      "expansion": "-bb",
      "name": "head"
    }
  ],
  "lang": "Hungarian",
  "lang_code": "hu",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Hungarian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "apró (“tiny”) + -bb → apróbb (“tinier”)",
          "type": "example"
        },
        {
          "text": "messze (“far”) + -bb → messzebb (“farther”)",
          "type": "example"
        }
      ],
      "glosses": [
        "-er, more (added to adjectives and certain adverbs to form the comparative)"
      ],
      "id": "en--bb-hu-suffix-eWC~HOU~",
      "links": [
        [
          "-er",
          "-er"
        ],
        [
          "more",
          "more"
        ]
      ],
      "raw_glosses": [
        "(comparative suffix) -er, more (added to adjectives and certain adverbs to form the comparative)"
      ],
      "tags": [
        "comparative",
        "morpheme",
        "suffix"
      ]
    }
  ],
  "word": "-bb"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "hu",
        "2": "fiu-pro",
        "3": "-"
      },
      "expansion": "Proto-Finno-Ugric",
      "name": "inh"
    },
    {
      "args": {
        "1": "fi",
        "2": "-mpi"
      },
      "expansion": "Finnish -mpi",
      "name": "cog"
    }
  ],
  "etymology_text": "Of Proto-Finno-Ugric origin. Cognates include Finnish -mpi.",
  "head_templates": [
    {
      "args": {
        "1": "hu",
        "2": "suffix"
      },
      "expansion": "-bb",
      "name": "head"
    }
  ],
  "lang": "Hungarian",
  "lang_code": "hu",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Hungarian entries with incorrect language header",
        "Hungarian lemmas",
        "Hungarian suffixes",
        "Hungarian terms derived from Proto-Finno-Ugric",
        "Hungarian terms inherited from Proto-Finno-Ugric"
      ],
      "examples": [
        {
          "text": "apró (“tiny”) + -bb → apróbb (“tinier”)",
          "type": "example"
        },
        {
          "text": "messze (“far”) + -bb → messzebb (“farther”)",
          "type": "example"
        }
      ],
      "glosses": [
        "-er, more (added to adjectives and certain adverbs to form the comparative)"
      ],
      "links": [
        [
          "-er",
          "-er"
        ],
        [
          "more",
          "more"
        ]
      ],
      "raw_glosses": [
        "(comparative suffix) -er, more (added to adjectives and certain adverbs to form the comparative)"
      ],
      "tags": [
        "comparative",
        "morpheme",
        "suffix"
      ]
    }
  ],
  "word": "-bb"
}