"於焉間" meaning in 朝鮮語

{
  "categories": [
    {
      "kind": "other",
      "name": "朝鮮語",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "朝鮮語_副詞",
      "parents": [],
      "source": "w"
    }
  ],
  "forms": [
    {
      "form": "어언간"
    }
  ],
  "lang": "朝鮮語",
  "lang_code": "ko",
  "pos": "adv",
  "pos_title": "副詞",
  "senses": [
    {
      "glosses": [
        "いつの間にか"
      ],
      "id": "ja-於焉間-ko-adv-I3bHJS6P"
    }
  ],
  "word": "於焉間"
}

{
  "categories": [
    "朝鮮語",
    "朝鮮語_副詞"
  ],
  "forms": [
    {
      "form": "어언간"
    }
  ],
  "lang": "朝鮮語",
  "lang_code": "ko",
  "pos": "adv",
  "pos_title": "副詞",
  "senses": [
    {
      "glosses": [
        "いつの間にか"
      ]
    }
  ],
  "word": "於焉間"
}