"whenceforward" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "whence",
        "3": "forward"
      },
      "expansion": "whence + forward",
      "name": "compound"
    }
  ],
  "etymology_text": "whence + forward",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "whenceforward (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "The lease expired in 1890, whenceforward the property reverted to its original owner."
        }
      ],
      "glosses": [
        "From which point onwards (in time or space)."
      ],
      "id": "en-whenceforward-en-adv-QThrlIW1",
      "raw_glosses": [
        "(formal or literary) From which point onwards (in time or space)."
      ],
      "tags": [
        "formal",
        "literary",
        "not-comparable"
      ]
    }
  ],
  "word": "whenceforward"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "whence",
        "3": "forward"
      },
      "expansion": "whence + forward",
      "name": "compound"
    }
  ],
  "etymology_text": "whence + forward",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "whenceforward (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "English adverbs",
        "English compound terms",
        "English entries with incorrect language header",
        "English formal terms",
        "English lemmas",
        "English literary terms",
        "English uncomparable adverbs"
      ],
      "examples": [
        {
          "text": "The lease expired in 1890, whenceforward the property reverted to its original owner."
        }
      ],
      "glosses": [
        "From which point onwards (in time or space)."
      ],
      "raw_glosses": [
        "(formal or literary) From which point onwards (in time or space)."
      ],
      "tags": [
        "formal",
        "literary",
        "not-comparable"
      ]
    }
  ],
  "word": "whenceforward"
}