"эхэлсэн" meaning in Mongolian

{
  "forms": [
    {
      "form": "exelsen",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "эхэлсэн • (exelsen)",
      "name": "mn-verb-form"
    }
  ],
  "hyphenation": [
    "э‧хэл‧сэн"
  ],
  "lang": "Mongolian",
  "lang_code": "mn",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Mongolian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Mongolian terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "past participle in -сэн (-sen) of эхлэх (exlex, “to begin”)"
      ],
      "id": "en-эхэлсэн-mn-verb-5S6BJrNz",
      "links": [
        [
          "-сэн",
          "-сан#Mongolian:_verb_suffix"
        ],
        [
          "эхлэх",
          "эхлэх#Mongolian"
        ],
        [
          "begin",
          "begin"
        ]
      ],
      "wikipedia": [
        "Mongolian script"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[e̝.xɘ̆ɬ.sɘŋ]"
    }
  ],
  "word": "эхэлсэн"
}

{
  "forms": [
    {
      "form": "exelsen",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "эхэлсэн • (exelsen)",
      "name": "mn-verb-form"
    }
  ],
  "hyphenation": [
    "э‧хэл‧сэн"
  ],
  "lang": "Mongolian",
  "lang_code": "mn",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Mongolian 3-syllable words",
        "Mongolian entries with incorrect language header",
        "Mongolian non-lemma forms",
        "Mongolian participles",
        "Mongolian terms with IPA pronunciation",
        "Mongolian terms with redundant script codes",
        "Mongolian verb forms"
      ],
      "glosses": [
        "past participle in -сэн (-sen) of эхлэх (exlex, “to begin”)"
      ],
      "links": [
        [
          "-сэн",
          "-сан#Mongolian:_verb_suffix"
        ],
        [
          "эхлэх",
          "эхлэх#Mongolian"
        ],
        [
          "begin",
          "begin"
        ]
      ],
      "wikipedia": [
        "Mongolian script"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[e̝.xɘ̆ɬ.sɘŋ]"
    }
  ],
  "word": "эхэлсэн"
}