"no-" meaning in Middle Irish

{
  "etymology_templates": [
    {
      "args": {
        "1": "mga",
        "2": "sga",
        "3": "no-"
      },
      "expansion": "Old Irish no-",
      "name": "inh"
    },
    {
      "args": {
        "1": "mga",
        "2": "ine-pro",
        "3": "*nū"
      },
      "expansion": "Proto-Indo-European *nū",
      "name": "inh"
    },
    {
      "args": {
        "1": "sa",
        "2": "नु",
        "3": "",
        "4": "now"
      },
      "expansion": "Sanskrit नु (nu, “now”)",
      "name": "cog"
    },
    {
      "args": {
        "1": "hit",
        "2": "𒉡",
        "3": "",
        "4": "now, and",
        "tr": "nu"
      },
      "expansion": "Hittite 𒉡 (nu, “now, and”)",
      "name": "cog"
    }
  ],
  "etymology_text": "From Old Irish no-, from Proto-Indo-European *nū, cognate with Sanskrit नु (nu, “now”) and Hittite 𒉡 (nu, “now, and”).",
  "head_templates": [
    {
      "args": {
        "1": "mga",
        "2": "prefix"
      },
      "expansion": "no-",
      "name": "head"
    }
  ],
  "lang": "Middle Irish",
  "lang_code": "mga",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Entries with collapsible category trees for nonexistent categories",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Middle Irish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 9 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "17 0 2 25 0 22 22 4 2 4",
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "12 0 12 19 0 17 17 16 2 4",
          "kind": "other",
          "name": "Pages with 9 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "12 0 12 18 0 16 16 16 4 7",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Used to support prototonic verb forms where no deuterotonic forms exist (imperfect, past subjunctive, conditional) and to support infixed object pronouns, including the relative pronoun that has no form except for a mutation on the following consonant"
      ],
      "id": "en-no--mga-prefix--tSHDLVB",
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "no-"
}

{
  "categories": [
    "Pages using catfix",
    "Pages with 9 entries",
    "Pages with entries"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "mga",
        "2": "sga",
        "3": "no-"
      },
      "expansion": "Old Irish no-",
      "name": "inh"
    },
    {
      "args": {
        "1": "mga",
        "2": "ine-pro",
        "3": "*nū"
      },
      "expansion": "Proto-Indo-European *nū",
      "name": "inh"
    },
    {
      "args": {
        "1": "sa",
        "2": "नु",
        "3": "",
        "4": "now"
      },
      "expansion": "Sanskrit नु (nu, “now”)",
      "name": "cog"
    },
    {
      "args": {
        "1": "hit",
        "2": "𒉡",
        "3": "",
        "4": "now, and",
        "tr": "nu"
      },
      "expansion": "Hittite 𒉡 (nu, “now, and”)",
      "name": "cog"
    }
  ],
  "etymology_text": "From Old Irish no-, from Proto-Indo-European *nū, cognate with Sanskrit नु (nu, “now”) and Hittite 𒉡 (nu, “now, and”).",
  "head_templates": [
    {
      "args": {
        "1": "mga",
        "2": "prefix"
      },
      "expansion": "no-",
      "name": "head"
    }
  ],
  "lang": "Middle Irish",
  "lang_code": "mga",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "Entries with collapsible category trees for nonexistent categories",
        "Middle Irish entries with incorrect language header",
        "Middle Irish lemmas",
        "Middle Irish prefixes",
        "Middle Irish terms derived from Old Irish",
        "Middle Irish terms derived from Proto-Indo-European",
        "Middle Irish terms inherited from Old Irish",
        "Middle Irish terms inherited from Proto-Indo-European",
        "Pages using catfix",
        "Pages with 9 entries",
        "Pages with entries"
      ],
      "glosses": [
        "Used to support prototonic verb forms where no deuterotonic forms exist (imperfect, past subjunctive, conditional) and to support infixed object pronouns, including the relative pronoun that has no form except for a mutation on the following consonant"
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "word": "no-"
}