"sechtmad" meaning in Middle Irish

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ga",
            "2": "seachtú"
          },
          "expansion": "Irish: seachtú",
          "name": "desc"
        }
      ],
      "text": "Irish: seachtú"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "mga",
        "2": "cel-pro",
        "3": "*sextametos"
      },
      "expansion": "Proto-Celtic *sextametos",
      "name": "inh"
    },
    {
      "args": {
        "1": "mga",
        "2": "secht",
        "3": "-mad"
      },
      "expansion": "By surface analysis, secht + -mad",
      "name": "surf"
    }
  ],
  "etymology_text": "From Proto-Celtic *sextametos. By surface analysis, secht + -mad.",
  "forms": [
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "mga-mutation",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "sechtmad",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "ṡechtmad",
      "source": "mutation",
      "tags": [
        "lenition",
        "mutation"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mga",
        "2": "adjective",
        "cat2": "ordinal numbers"
      },
      "expansion": "sechtmad",
      "name": "head"
    }
  ],
  "inflection_templates": [
    {
      "args": {
        "1": "s",
        "2": "echtmad"
      },
      "name": "mga-mutation"
    }
  ],
  "lang": "Middle Irish",
  "lang_code": "mga",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Middle Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Middle Irish links with redundant target parameters",
          "parents": [
            "Links with redundant target parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "name": "Middle Irish ordinal numbers",
          "parents": [
            "Ordinal numbers",
            "Numbers",
            "All topics",
            "Terms by semantic function",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Middle Irish terms suffixed with -mad",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "seventh"
      ],
      "id": "en-sechtmad-mga-adj-8EEtbetC",
      "links": [
        [
          "seventh",
          "seventh"
        ]
      ]
    }
  ],
  "word": "sechtmad"
}

{
  "descendants": [
    {
      "depth": 1,
      "templates": [
        {
          "args": {
            "1": "ga",
            "2": "seachtú"
          },
          "expansion": "Irish: seachtú",
          "name": "desc"
        }
      ],
      "text": "Irish: seachtú"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "mga",
        "2": "cel-pro",
        "3": "*sextametos"
      },
      "expansion": "Proto-Celtic *sextametos",
      "name": "inh"
    },
    {
      "args": {
        "1": "mga",
        "2": "secht",
        "3": "-mad"
      },
      "expansion": "By surface analysis, secht + -mad",
      "name": "surf"
    }
  ],
  "etymology_text": "From Proto-Celtic *sextametos. By surface analysis, secht + -mad.",
  "forms": [
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "mga-mutation",
      "source": "mutation",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "sechtmad",
      "source": "mutation",
      "tags": [
        "mutation",
        "mutation-radical"
      ]
    },
    {
      "form": "ṡechtmad",
      "source": "mutation",
      "tags": [
        "lenition",
        "mutation"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mga",
        "2": "adjective",
        "cat2": "ordinal numbers"
      },
      "expansion": "sechtmad",
      "name": "head"
    }
  ],
  "inflection_templates": [
    {
      "args": {
        "1": "s",
        "2": "echtmad"
      },
      "name": "mga-mutation"
    }
  ],
  "lang": "Middle Irish",
  "lang_code": "mga",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Middle Irish adjectives",
        "Middle Irish entries with incorrect language header",
        "Middle Irish lemmas",
        "Middle Irish links with redundant target parameters",
        "Middle Irish ordinal numbers",
        "Middle Irish terms derived from Proto-Celtic",
        "Middle Irish terms inherited from Proto-Celtic",
        "Middle Irish terms suffixed with -mad"
      ],
      "glosses": [
        "seventh"
      ],
      "links": [
        [
          "seventh",
          "seventh"
        ]
      ]
    }
  ],
  "word": "sechtmad"
}