"syth" meaning in Welsh

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "cel-pro",
        "3": "*sizdos"
      },
      "expansion": "Proto-Celtic *sizdos",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "ine-pro",
        "3": "*sísdeti"
      },
      "expansion": "Proto-Indo-European *sísdeti",
      "name": "inh"
    },
    {
      "args": {
        "1": "mga",
        "2": "seta",
        "3": "",
        "4": "tall"
      },
      "expansion": "Middle Irish seta (“tall”)",
      "name": "cog"
    },
    {
      "args": {
        "1": "la",
        "2": "sīdō",
        "3": "",
        "4": "sit down, settle"
      },
      "expansion": "Latin sīdō (“sit down, settle”)",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Celtic *sizdos, from Proto-Indo-European *sísdeti. Cognate with Middle Irish seta (“tall”), Latin sīdō (“sit down, settle”).",
  "forms": [
    {
      "form": "seth",
      "tags": [
        "feminine",
        "singular"
      ]
    },
    {
      "form": "sythion",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "sythed",
      "tags": [
        "equative"
      ]
    },
    {
      "form": "sythach",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "sythaf",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ach",
        "f": "seth",
        "pl": "sythion"
      },
      "expansion": "syth (feminine singular seth, plural sythion, equative sythed, comparative sythach, superlative sythaf, not mutable)",
      "name": "cy-adj"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Welsh entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "straight"
      ],
      "id": "en-syth-cy-adj-KkJIdahH",
      "links": [
        [
          "straight",
          "straight"
        ]
      ],
      "tags": [
        "not-mutable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sɨːθ/",
      "tags": [
        "North-Wales"
      ]
    },
    {
      "ipa": "/siːθ/",
      "tags": [
        "South-Wales"
      ]
    },
    {
      "rhymes": "-ɨːθ"
    }
  ],
  "word": "syth"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "cy",
        "2": "cel-pro",
        "3": "*sizdos"
      },
      "expansion": "Proto-Celtic *sizdos",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "ine-pro",
        "3": "*sísdeti"
      },
      "expansion": "Proto-Indo-European *sísdeti",
      "name": "inh"
    },
    {
      "args": {
        "1": "mga",
        "2": "seta",
        "3": "",
        "4": "tall"
      },
      "expansion": "Middle Irish seta (“tall”)",
      "name": "cog"
    },
    {
      "args": {
        "1": "la",
        "2": "sīdō",
        "3": "",
        "4": "sit down, settle"
      },
      "expansion": "Latin sīdō (“sit down, settle”)",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Celtic *sizdos, from Proto-Indo-European *sísdeti. Cognate with Middle Irish seta (“tall”), Latin sīdō (“sit down, settle”).",
  "forms": [
    {
      "form": "seth",
      "tags": [
        "feminine",
        "singular"
      ]
    },
    {
      "form": "sythion",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "sythed",
      "tags": [
        "equative"
      ]
    },
    {
      "form": "sythach",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "sythaf",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ach",
        "f": "seth",
        "pl": "sythion"
      },
      "expansion": "syth (feminine singular seth, plural sythion, equative sythed, comparative sythach, superlative sythaf, not mutable)",
      "name": "cy-adj"
    }
  ],
  "lang": "Welsh",
  "lang_code": "cy",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Rhymes:Welsh/ɨːθ",
        "Rhymes:Welsh/ɨːθ/1 syllable",
        "Welsh adjectives",
        "Welsh adjectives with red links in their headword lines",
        "Welsh entries with incorrect language header",
        "Welsh lemmas",
        "Welsh non-mutable terms",
        "Welsh terms derived from Proto-Celtic",
        "Welsh terms derived from Proto-Indo-European",
        "Welsh terms inherited from Proto-Celtic",
        "Welsh terms inherited from Proto-Indo-European",
        "Welsh terms with IPA pronunciation"
      ],
      "glosses": [
        "straight"
      ],
      "links": [
        [
          "straight",
          "straight"
        ]
      ],
      "tags": [
        "not-mutable"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sɨːθ/",
      "tags": [
        "North-Wales"
      ]
    },
    {
      "ipa": "/siːθ/",
      "tags": [
        "South-Wales"
      ]
    },
    {
      "rhymes": "-ɨːθ"
    }
  ],
  "word": "syth"
}