"trethow" meaning in Cornish

{
  "etymology_templates": [
    {
      "args": {
        "1": "kw",
        "2": "treth",
        "3": "ow"
      },
      "expansion": "treth + -ow",
      "name": "suffix"
    }
  ],
  "etymology_text": "From treth + -ow.",
  "head_templates": [
    {
      "args": {
        "1": "kw",
        "2": "noun plural form",
        "g": "m-p"
      },
      "expansion": "trethow m pl",
      "name": "head"
    }
  ],
  "lang": "Cornish",
  "lang_code": "kw",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Cornish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Cornish entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Cornish terms suffixed with -ow",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "kw",
          "name": "Nature",
          "orig": "kw:Nature",
          "parents": [
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "extra": "“beach\", \"sand”",
          "word": "treth"
        }
      ],
      "glosses": [
        "plural of treth (“beach\", \"sand”)"
      ],
      "id": "en-trethow-kw-noun-Vr2lMzkO",
      "links": [
        [
          "treth",
          "treth#Cornish"
        ]
      ],
      "tags": [
        "form-of",
        "masculine",
        "plural"
      ]
    }
  ],
  "word": "trethow"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "kw",
        "2": "treth",
        "3": "ow"
      },
      "expansion": "treth + -ow",
      "name": "suffix"
    }
  ],
  "etymology_text": "From treth + -ow.",
  "head_templates": [
    {
      "args": {
        "1": "kw",
        "2": "noun plural form",
        "g": "m-p"
      },
      "expansion": "trethow m pl",
      "name": "head"
    }
  ],
  "lang": "Cornish",
  "lang_code": "kw",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Cornish entries with incorrect language header",
        "Cornish entries with topic categories using raw markup",
        "Cornish non-lemma forms",
        "Cornish noun plural forms",
        "Cornish terms suffixed with -ow",
        "Requests for pronunciation in Cornish entries",
        "kw:Nature"
      ],
      "form_of": [
        {
          "extra": "“beach\", \"sand”",
          "word": "treth"
        }
      ],
      "glosses": [
        "plural of treth (“beach\", \"sand”)"
      ],
      "links": [
        [
          "treth",
          "treth#Cornish"
        ]
      ],
      "tags": [
        "form-of",
        "masculine",
        "plural"
      ]
    }
  ],
  "word": "trethow"
}