"foundedst" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "verb form"
      },
      "expansion": "foundedst",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "found"
        }
      ],
      "glosses": [
        "second-person singular simple past indicative of found"
      ],
      "id": "en-foundedst-en-verb--2a9vm3I",
      "links": [
        [
          "found",
          "found#English"
        ]
      ],
      "raw_glosses": [
        "(archaic) second-person singular simple past indicative of found"
      ],
      "tags": [
        "archaic",
        "form-of",
        "indicative",
        "past",
        "second-person",
        "singular"
      ]
    }
  ],
  "word": "foundedst"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "verb form"
      },
      "expansion": "foundedst",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English non-lemma forms",
        "English second-person singular past tense forms",
        "English verb forms"
      ],
      "form_of": [
        {
          "word": "found"
        }
      ],
      "glosses": [
        "second-person singular simple past indicative of found"
      ],
      "links": [
        [
          "found",
          "found#English"
        ]
      ],
      "raw_glosses": [
        "(archaic) second-person singular simple past indicative of found"
      ],
      "tags": [
        "archaic",
        "form-of",
        "indicative",
        "past",
        "second-person",
        "singular"
      ]
    }
  ],
  "word": "foundedst"
}