"lanquan" meaning in Old Occitan

{
  "etymology_text": "The second element corresponds to Latin quando (“when”).",
  "head_templates": [
    {
      "args": {
        "1": "pro",
        "2": "conjunction"
      },
      "expansion": "lanquan",
      "name": "head"
    }
  ],
  "lang": "Old Occitan",
  "lang_code": "pro",
  "pos": "conj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Occitan entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "In May, when the days are long",
          "text": "12th century, Jaufré Rudel⁽ᵂⁱᵏⁱˢᵒᵘʳᶜᵉ⁾\nLanquan li jorn son lonc, en may.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "when"
      ],
      "id": "en-lanquan-pro-conj-FeqnUkCu",
      "links": [
        [
          "when",
          "when"
        ]
      ],
      "synonyms": [
        {
          "word": "lancan"
        },
        {
          "word": "lanqand"
        }
      ]
    }
  ],
  "word": "lanquan"
}

{
  "etymology_text": "The second element corresponds to Latin quando (“when”).",
  "head_templates": [
    {
      "args": {
        "1": "pro",
        "2": "conjunction"
      },
      "expansion": "lanquan",
      "name": "head"
    }
  ],
  "lang": "Old Occitan",
  "lang_code": "pro",
  "pos": "conj",
  "senses": [
    {
      "categories": [
        "Old Occitan conjunctions",
        "Old Occitan entries with incorrect language header",
        "Old Occitan lemmas",
        "Old Occitan terms with quotations"
      ],
      "examples": [
        {
          "english": "In May, when the days are long",
          "text": "12th century, Jaufré Rudel⁽ᵂⁱᵏⁱˢᵒᵘʳᶜᵉ⁾\nLanquan li jorn son lonc, en may.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "when"
      ],
      "links": [
        [
          "when",
          "when"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "word": "lancan"
    },
    {
      "word": "lanqand"
    }
  ],
  "word": "lanquan"
}