"fretter" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "fretere",
        "t": "that which frets, devours, or corrodes"
      },
      "expansion": "Middle English fretere (“that which frets, devours, or corrodes”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "en",
        "2": "fret",
        "3": "-er",
        "id2": "agent noun"
      },
      "expansion": "fret + -er",
      "name": "af"
    }
  ],
  "etymology_text": "From Middle English fretere (“that which frets, devours, or corrodes”), equivalent to fret + -er.",
  "forms": [
    {
      "form": "fretters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "fretter (plural fretters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -er (agent noun)",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "vine-fretter"
        }
      ],
      "glosses": [
        "One who or that which frets."
      ],
      "id": "en-fretter-en-noun-qCxJFxdo",
      "links": [
        [
          "fret",
          "fret"
        ]
      ]
    }
  ],
  "word": "fretter"
}

{
  "derived": [
    {
      "word": "vine-fretter"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "enm",
        "3": "fretere",
        "t": "that which frets, devours, or corrodes"
      },
      "expansion": "Middle English fretere (“that which frets, devours, or corrodes”)",
      "name": "inh"
    },
    {
      "args": {
        "1": "en",
        "2": "fret",
        "3": "-er",
        "id2": "agent noun"
      },
      "expansion": "fret + -er",
      "name": "af"
    }
  ],
  "etymology_text": "From Middle English fretere (“that which frets, devours, or corrodes”), equivalent to fret + -er.",
  "forms": [
    {
      "form": "fretters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "fretter (plural fretters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English agent nouns",
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English lemmas",
        "English nouns",
        "English terms derived from Middle English",
        "English terms inherited from Middle English",
        "English terms suffixed with -er (agent noun)"
      ],
      "glosses": [
        "One who or that which frets."
      ],
      "links": [
        [
          "fret",
          "fret"
        ]
      ]
    }
  ],
  "word": "fretter"
}