"fess" meaning in Old Irish

{
  "etymology_templates": [
    {
      "args": {
        "1": "sga",
        "2": "cel-pro",
        "3": "*wid-to-m"
      },
      "expansion": "Proto-Celtic *wid-to-m",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "gwys"
      },
      "expansion": "Welsh gwys",
      "name": "cog"
    },
    {
      "args": {
        "1": "xbm",
        "2": "gous"
      },
      "expansion": "Middle Breton gous",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Celtic *wid-to-m; akin to Welsh gwys and Middle Breton gous.",
  "forms": [
    {
      "form": "·fess",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "·fess",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "·ḟess",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "·fess",
      "source": "mutation"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "verb form",
        "head": "·fess"
      },
      "expansion": "·fess",
      "name": "head"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Old Irish links with redundant target parameters",
          "parents": [
            "Links with redundant target parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 7 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "ro·finnadar"
        }
      ],
      "glosses": [
        "passive singular perfect prototonic of ro·finnadar"
      ],
      "id": "en-fess-sga-verb-B~Oweqsc",
      "links": [
        [
          "ro·finnadar",
          "rofinnadar#Old_Irish"
        ]
      ],
      "tags": [
        "form-of",
        "passive",
        "perfect",
        "prototonic",
        "singular"
      ]
    }
  ],
  "word": "fess"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "sga",
        "2": "cel-pro",
        "3": "*wid-to-m"
      },
      "expansion": "Proto-Celtic *wid-to-m",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "gwys"
      },
      "expansion": "Welsh gwys",
      "name": "cog"
    },
    {
      "args": {
        "1": "xbm",
        "2": "gous"
      },
      "expansion": "Middle Breton gous",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Celtic *wid-to-m; akin to Welsh gwys and Middle Breton gous.",
  "forms": [
    {
      "form": "·fess",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "mutation",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "·fess",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "·ḟess",
      "source": "mutation",
      "tags": [
        "error-unrecognized-form"
      ]
    },
    {
      "form": "·fess",
      "source": "mutation"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "verb form",
        "head": "·fess"
      },
      "expansion": "·fess",
      "name": "head"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Old Irish entries with incorrect language header",
        "Old Irish links with redundant target parameters",
        "Old Irish non-lemma forms",
        "Old Irish terms derived from Proto-Celtic",
        "Old Irish terms inherited from Proto-Celtic",
        "Old Irish verb forms",
        "Pages with 7 entries",
        "Pages with entries"
      ],
      "form_of": [
        {
          "word": "ro·finnadar"
        }
      ],
      "glosses": [
        "passive singular perfect prototonic of ro·finnadar"
      ],
      "links": [
        [
          "ro·finnadar",
          "rofinnadar#Old_Irish"
        ]
      ],
      "tags": [
        "form-of",
        "passive",
        "perfect",
        "prototonic",
        "singular"
      ]
    }
  ],
  "word": "fess"
}

{
  "called_from": "inflection/865",
  "msg": "inflection table: IF WITHOUT ELSE EVALS False: fess/Old Irish 'radical' base_tags=set()",
  "path": [
    "fess"
  ],
  "section": "Old Irish",
  "subsection": "verb",
  "title": "fess",
  "trace": ""
}

{
  "called_from": "inflection/735",
  "msg": "inflection table: unrecognized header: 'lenition'",
  "path": [
    "fess"
  ],
  "section": "Old Irish",
  "subsection": "verb",
  "title": "fess",
  "trace": ""
}

{
  "called_from": "inflection/735",
  "msg": "inflection table: unrecognized header: 'nasalization'",
  "path": [
    "fess"
  ],
  "section": "Old Irish",
  "subsection": "verb",
  "title": "fess",
  "trace": ""
}

{
  "called_from": "inflection/1826",
  "msg": "inflection table: empty tags for ·fess",
  "path": [
    "fess"
  ],
  "section": "Old Irish",
  "subsection": "verb",
  "title": "fess",
  "trace": ""
}