"nighten" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "night",
        "3": "-en",
        "id2": "inchoative"
      },
      "expansion": "night + -en",
      "name": "af"
    }
  ],
  "etymology_text": "From night + -en.",
  "forms": [
    {
      "form": "nightens",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "nightening",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "nightened",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "nightened",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "nighten (third-person singular simple present nightens, present participle nightening, simple past and past participle nightened)",
      "name": "en-verb"
    }
  ],
  "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"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -en (inchoative)",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1996, Frederick Kiesler, Siegfried Gohr, Gunda Luyken, Frederick J. Kiesler: selected writings, page 60:",
          "text": "The flame of these smudge pots was just the type which presented itself in my vision, fluttering like a flag and giving off enough dark smoke to nighten the wooden sculpture above and around the flame.",
          "type": "quote"
        },
        {
          "ref": "2005, David White, The Hallucinogenic Rooster, page 163:",
          "text": "A flash of pretty fireworks in a nightening sky falling down, making the dry field catch fire.",
          "type": "quote"
        },
        {
          "ref": "2014, Harlan Ellison, Paingod:",
          "text": "A dark place, a shadowed place, only a blot against the eternally nightened skies.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To become night or grow dark, as night."
      ],
      "id": "en-nighten-en-verb-TqNi2dHZ",
      "links": [
        [
          "night",
          "night"
        ],
        [
          "grow",
          "grow"
        ],
        [
          "dark",
          "dark"
        ]
      ],
      "raw_glosses": [
        "(intransitive) To become night or grow dark, as night."
      ],
      "tags": [
        "intransitive"
      ]
    }
  ],
  "word": "nighten"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "night",
        "3": "-en",
        "id2": "inchoative"
      },
      "expansion": "night + -en",
      "name": "af"
    }
  ],
  "etymology_text": "From night + -en.",
  "forms": [
    {
      "form": "nightens",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "nightening",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "nightened",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "nightened",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "nighten (third-person singular simple present nightens, present participle nightening, simple past and past participle nightened)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English intransitive verbs",
        "English lemmas",
        "English terms suffixed with -en (inchoative)",
        "English terms with quotations",
        "English verbs",
        "Pages with 1 entry",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1996, Frederick Kiesler, Siegfried Gohr, Gunda Luyken, Frederick J. Kiesler: selected writings, page 60:",
          "text": "The flame of these smudge pots was just the type which presented itself in my vision, fluttering like a flag and giving off enough dark smoke to nighten the wooden sculpture above and around the flame.",
          "type": "quote"
        },
        {
          "ref": "2005, David White, The Hallucinogenic Rooster, page 163:",
          "text": "A flash of pretty fireworks in a nightening sky falling down, making the dry field catch fire.",
          "type": "quote"
        },
        {
          "ref": "2014, Harlan Ellison, Paingod:",
          "text": "A dark place, a shadowed place, only a blot against the eternally nightened skies.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To become night or grow dark, as night."
      ],
      "links": [
        [
          "night",
          "night"
        ],
        [
          "grow",
          "grow"
        ],
        [
          "dark",
          "dark"
        ]
      ],
      "raw_glosses": [
        "(intransitive) To become night or grow dark, as night."
      ],
      "tags": [
        "intransitive"
      ]
    }
  ],
  "word": "nighten"
}