"sech is" meaning in Old Irish

{
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "phrase"
      },
      "expansion": "sech is",
      "name": "head"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Old Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "english": "When David says, “I will give thee understanding”, that is a sign that God will give to everyone that will trust in him, and work through him, that he may know what evil he must avoid doing, and what good he must do. He has then here a reply in the person of God.",
          "text": "In tan as·mber Dauid “intellectum tibi dabo”, sech is arde són do·mbéra Día do neuch nod·n-eirbea ind ⁊ génas triit con·festar cid as imgabthi do dénum di ulc ⁊ cid as déinti dó di maith. Aithesc trá lesom insin a persin Dǽ.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "that is, namely"
      ],
      "id": "en-sech_is-sga-phrase-3iVcskYh",
      "links": [
        [
          "that is",
          "that is"
        ],
        [
          "namely",
          "namely"
        ]
      ],
      "synonyms": [
        {
          "word": "ed ón"
        }
      ]
    }
  ],
  "word": "sech is"
}

{
  "head_templates": [
    {
      "args": {
        "1": "sga",
        "2": "phrase"
      },
      "expansion": "sech is",
      "name": "head"
    }
  ],
  "lang": "Old Irish",
  "lang_code": "sga",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "Old Irish entries with incorrect language header",
        "Old Irish lemmas",
        "Old Irish multiword terms",
        "Old Irish phrases",
        "Old Irish terms with quotations"
      ],
      "examples": [
        {
          "english": "When David says, “I will give thee understanding”, that is a sign that God will give to everyone that will trust in him, and work through him, that he may know what evil he must avoid doing, and what good he must do. He has then here a reply in the person of God.",
          "text": "In tan as·mber Dauid “intellectum tibi dabo”, sech is arde són do·mbéra Día do neuch nod·n-eirbea ind ⁊ génas triit con·festar cid as imgabthi do dénum di ulc ⁊ cid as déinti dó di maith. Aithesc trá lesom insin a persin Dǽ.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "that is, namely"
      ],
      "links": [
        [
          "that is",
          "that is"
        ],
        [
          "namely",
          "namely"
        ]
      ],
      "synonyms": [
        {
          "word": "ed ón"
        }
      ]
    }
  ],
  "word": "sech is"
}