"colourfast" meaning in English

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      "expansion": "Etymology tree\nEnglish colour\nProto-Germanic *fastuz\nProto-West Germanic *fast\nOld English fæst\nMiddle English fast\nEnglish fast\nEnglish colourfast\n[Appendix:Glossary#inherited|Inherited]] from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-West Germanic\", \"term\" : \"*fast\", \"status\" : \"ok\", \"lang\" : \"gmw-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Old English\", \"term\" : \"fæst\", \"status\" : \"ok\", \"lang\" : \"ang\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Middle English\", \"term\" : \"fast\", \"status\" : \"inline\", \"lang\" : \"enm\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"English\", \"term\" : \"fast\", \"status\" : \"ok\", \"lang\" : \"en\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"English\", \"term\" : \"colourfast\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"colourfast\">\nFrom colour + fast.",
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  "etymology_text": "Etymology tree\nEnglish colour\nProto-Germanic *fastuz\nProto-West Germanic *fast\nOld English fæst\nMiddle English fast\nEnglish fast\nEnglish colourfast\nFrom colour + fast.",
  "forms": [
    {
      "form": "more colourfast",
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        "comparative"
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    },
    {
      "form": "most colourfast",
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        "superlative"
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      "expansion": "colourfast (comparative more colourfast, superlative most colourfast)",
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  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "Items with dyes or pigments that are capable of producing a stable colouring effect.",
          "word": "colorfast"
        }
      ],
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      "derived": [
        {
          "word": "noncolourfast"
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        "Alternative spelling of colorfast (Items with dyes or pigments that are capable of producing a stable colouring effect.)"
      ],
      "id": "en-colourfast-en-adj-8hlgn0Hw",
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          "pigment",
          "pigment"
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          "colouring",
          "colour"
        ]
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  "word": "colourfast"
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      "word": "noncolourfast"
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      "expansion": "Etymology tree\nEnglish colour\nProto-Germanic *fastuz\nProto-West Germanic *fast\nOld English fæst\nMiddle English fast\nEnglish fast\nEnglish colourfast\n[Appendix:Glossary#inherited|Inherited]] from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-West Germanic\", \"term\" : \"*fast\", \"status\" : \"ok\", \"lang\" : \"gmw-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Old English\", \"term\" : \"fæst\", \"status\" : \"ok\", \"lang\" : \"ang\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Middle English\", \"term\" : \"fast\", \"status\" : \"inline\", \"lang\" : \"enm\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"English\", \"term\" : \"fast\", \"status\" : \"ok\", \"lang\" : \"en\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"English\", \"term\" : \"colourfast\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"colourfast\">\nFrom colour + fast.",
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  "etymology_text": "Etymology tree\nEnglish colour\nProto-Germanic *fastuz\nProto-West Germanic *fast\nOld English fæst\nMiddle English fast\nEnglish fast\nEnglish colourfast\nFrom colour + fast.",
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      "form": "more colourfast",
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      "form": "most colourfast",
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          "word": "colorfast"
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  "word": "colourfast"
}