"offitium" meaning in Latin

{
  "forms": [
    {
      "form": "offitiī",
      "tags": [
        "genitive"
      ]
    },
    {
      "form": "offitī",
      "tags": [
        "genitive"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "offitium<2>"
      },
      "expansion": "offitium n (genitive offitiī or offitī); second declension",
      "name": "la-noun"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "officium"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Latin entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Latin neuter nouns in the second declension",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Medieval Latin",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative form of officium"
      ],
      "id": "en-offitium-la-noun-2NNCpGMs",
      "links": [
        [
          "officium",
          "officium#Latin"
        ]
      ],
      "raw_glosses": [
        "(Medieval Latin) Alternative form of officium"
      ],
      "tags": [
        "Medieval-Latin",
        "alt-of",
        "alternative",
        "declension-2",
        "neuter"
      ]
    }
  ],
  "word": "offitium"
}

{
  "forms": [
    {
      "form": "offitiī",
      "tags": [
        "genitive"
      ]
    },
    {
      "form": "offitī",
      "tags": [
        "genitive"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "offitium<2>"
      },
      "expansion": "offitium n (genitive offitiī or offitī); second declension",
      "name": "la-noun"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "officium"
        }
      ],
      "categories": [
        "Latin entries with incorrect language header",
        "Latin lemmas",
        "Latin neuter nouns",
        "Latin neuter nouns in the second declension",
        "Latin nouns",
        "Latin nouns with red links in their inflection tables",
        "Latin second declension nouns",
        "Medieval Latin",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Alternative form of officium"
      ],
      "links": [
        [
          "officium",
          "officium#Latin"
        ]
      ],
      "raw_glosses": [
        "(Medieval Latin) Alternative form of officium"
      ],
      "tags": [
        "Medieval-Latin",
        "alt-of",
        "alternative",
        "declension-2",
        "neuter"
      ]
    }
  ],
  "word": "offitium"
}