"זבא תחתיא" meaning in Aramaic

{
  "head_templates": [
    {
      "args": {
        "1": "arc",
        "2": "proper nouns"
      },
      "expansion": "זבא תחתיא • (transliteration needed)",
      "name": "head"
    }
  ],
  "lang": "Aramaic",
  "lang_code": "arc",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Aramaic entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "arc",
          "name": "Rivers",
          "orig": "arc:Rivers",
          "parents": [
            "Bodies of water",
            "Places",
            "Landforms",
            "Water",
            "Names",
            "Earth",
            "Liquids",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Nature",
            "Matter",
            "Fundamental",
            "Nouns",
            "Chemistry",
            "Lemmas",
            "Sciences"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Lower Zab river"
      ],
      "id": "en-זבא_תחתיא-arc-name-QirTXBwp",
      "links": [
        [
          "Lower Zab",
          "Lower Zab"
        ]
      ]
    }
  ],
  "word": "זבא תחתיא"
}

{
  "head_templates": [
    {
      "args": {
        "1": "arc",
        "2": "proper nouns"
      },
      "expansion": "זבא תחתיא • (transliteration needed)",
      "name": "head"
    }
  ],
  "lang": "Aramaic",
  "lang_code": "arc",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Aramaic entries with incorrect language header",
        "Aramaic lemmas",
        "Aramaic multiword terms",
        "Aramaic proper nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "Requests for transliteration of Aramaic terms",
        "arc:Rivers"
      ],
      "glosses": [
        "Lower Zab river"
      ],
      "links": [
        [
          "Lower Zab",
          "Lower Zab"
        ]
      ]
    }
  ],
  "word": "זבא תחתיא"
}