"-st" meaning in Luxembourgish

{
  "etymology_templates": [
    {
      "args": {
        "1": "lb",
        "2": "gmh",
        "3": "-est"
      },
      "expansion": "Middle High German -est",
      "name": "inh"
    },
    {
      "args": {
        "1": "lb",
        "2": "goh",
        "3": "-ist"
      },
      "expansion": "Old High German -ist",
      "name": "inh"
    },
    {
      "args": {
        "1": "goh",
        "2": "-ōst"
      },
      "expansion": "-ōst",
      "name": "m"
    },
    {
      "args": {
        "1": "lb",
        "2": "gem-pro",
        "3": "*-istaz"
      },
      "expansion": "Proto-Germanic *-istaz",
      "name": "inh"
    },
    {
      "args": {
        "1": "gem-pro",
        "2": "*-ōstaz"
      },
      "expansion": "*-ōstaz",
      "name": "m"
    },
    {
      "args": {
        "1": "lb",
        "2": "",
        "3": "-scht"
      },
      "expansion": "-scht",
      "name": "m"
    },
    {
      "args": {
        "1": "lb",
        "2": "bescht",
        "t": "best"
      },
      "expansion": "bescht (“best”)",
      "name": "m"
    },
    {
      "args": {
        "1": "lb",
        "2": "meescht",
        "t": "most"
      },
      "expansion": "meescht (“most”)",
      "name": "m"
    },
    {
      "args": {
        "1": "lb",
        "2": "",
        "3": "-st"
      },
      "expansion": "-st",
      "name": "m"
    },
    {
      "args": {
        "1": "lb",
        "2": "de",
        "3": "-"
      },
      "expansion": "German",
      "name": "der"
    }
  ],
  "etymology_text": "From Middle High German -est, from Old High German -ist, -ōst, from Proto-Germanic *-istaz, *-ōstaz.\nThe expected form would be -scht as still in bescht (“best”) and meescht (“most”). The form -st is native in the northern third of Luxembourg and spread southwards, probably in part because the suffix is used in positions where /ʃ/ otherwise does not occur, and in part under the reinforcing influence of standard German.",
  "head_templates": [
    {
      "args": {
        "1": "lb",
        "2": "suffix"
      },
      "expansion": "-st",
      "name": "head"
    }
  ],
  "lang": "Luxembourgish",
  "lang_code": "lb",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Luxembourgish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Forms the superlative of adjectives; -est"
      ],
      "id": "en--st-lb-suffix-Ys5Scu-p",
      "links": [
        [
          "-est",
          "-est"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/st/"
    }
  ],
  "word": "-st"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "lb",
        "2": "gmh",
        "3": "-est"
      },
      "expansion": "Middle High German -est",
      "name": "inh"
    },
    {
      "args": {
        "1": "lb",
        "2": "goh",
        "3": "-ist"
      },
      "expansion": "Old High German -ist",
      "name": "inh"
    },
    {
      "args": {
        "1": "goh",
        "2": "-ōst"
      },
      "expansion": "-ōst",
      "name": "m"
    },
    {
      "args": {
        "1": "lb",
        "2": "gem-pro",
        "3": "*-istaz"
      },
      "expansion": "Proto-Germanic *-istaz",
      "name": "inh"
    },
    {
      "args": {
        "1": "gem-pro",
        "2": "*-ōstaz"
      },
      "expansion": "*-ōstaz",
      "name": "m"
    },
    {
      "args": {
        "1": "lb",
        "2": "",
        "3": "-scht"
      },
      "expansion": "-scht",
      "name": "m"
    },
    {
      "args": {
        "1": "lb",
        "2": "bescht",
        "t": "best"
      },
      "expansion": "bescht (“best”)",
      "name": "m"
    },
    {
      "args": {
        "1": "lb",
        "2": "meescht",
        "t": "most"
      },
      "expansion": "meescht (“most”)",
      "name": "m"
    },
    {
      "args": {
        "1": "lb",
        "2": "",
        "3": "-st"
      },
      "expansion": "-st",
      "name": "m"
    },
    {
      "args": {
        "1": "lb",
        "2": "de",
        "3": "-"
      },
      "expansion": "German",
      "name": "der"
    }
  ],
  "etymology_text": "From Middle High German -est, from Old High German -ist, -ōst, from Proto-Germanic *-istaz, *-ōstaz.\nThe expected form would be -scht as still in bescht (“best”) and meescht (“most”). The form -st is native in the northern third of Luxembourg and spread southwards, probably in part because the suffix is used in positions where /ʃ/ otherwise does not occur, and in part under the reinforcing influence of standard German.",
  "head_templates": [
    {
      "args": {
        "1": "lb",
        "2": "suffix"
      },
      "expansion": "-st",
      "name": "head"
    }
  ],
  "lang": "Luxembourgish",
  "lang_code": "lb",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Luxembourgish entries with incorrect language header",
        "Luxembourgish lemmas",
        "Luxembourgish suffixes",
        "Luxembourgish terms derived from German",
        "Luxembourgish terms derived from Middle High German",
        "Luxembourgish terms derived from Old High German",
        "Luxembourgish terms derived from Proto-Germanic",
        "Luxembourgish terms inherited from Middle High German",
        "Luxembourgish terms inherited from Old High German",
        "Luxembourgish terms inherited from Proto-Germanic",
        "Luxembourgish terms with IPA pronunciation"
      ],
      "glosses": [
        "Forms the superlative of adjectives; -est"
      ],
      "links": [
        [
          "-est",
          "-est"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/st/"
    }
  ],
  "word": "-st"
}