"-der" meaning in Cornish

{
  "etymology_templates": [
    {
      "args": {
        "1": "kw",
        "2": "cel-pro",
        "3": "*-teros"
      },
      "expansion": "Proto-Celtic *-teros",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "-der"
      },
      "expansion": "Welsh -der",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Celtic *-teros. Cognate with Welsh -der.",
  "head_templates": [
    {
      "args": {
        "1": "kw",
        "2": "suffix",
        "g": "m"
      },
      "expansion": "-der m",
      "name": "head"
    }
  ],
  "lang": "Cornish",
  "lang_code": "kw",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Cornish entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 4 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "efan (“broad”) + -der → efander (“space”)",
          "type": "example"
        },
        {
          "text": "tewl (“dark”) + -der → tewlder (“darkness”)",
          "type": "example"
        },
        {
          "text": "byw (“lively”) + -der → bewder (“liveliness”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Forms abstract noun"
      ],
      "id": "en--der-kw-suffix-6jI0TCcS",
      "tags": [
        "masculine",
        "morpheme"
      ]
    }
  ],
  "word": "-der"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "kw",
        "2": "cel-pro",
        "3": "*-teros"
      },
      "expansion": "Proto-Celtic *-teros",
      "name": "inh"
    },
    {
      "args": {
        "1": "cy",
        "2": "-der"
      },
      "expansion": "Welsh -der",
      "name": "cog"
    }
  ],
  "etymology_text": "From Proto-Celtic *-teros. Cognate with Welsh -der.",
  "head_templates": [
    {
      "args": {
        "1": "kw",
        "2": "suffix",
        "g": "m"
      },
      "expansion": "-der m",
      "name": "head"
    }
  ],
  "lang": "Cornish",
  "lang_code": "kw",
  "pos": "suffix",
  "senses": [
    {
      "categories": [
        "Cornish entries with incorrect language header",
        "Cornish lemmas",
        "Cornish masculine suffixes",
        "Cornish suffixes",
        "Cornish terms derived from Proto-Celtic",
        "Cornish terms inherited from Proto-Celtic",
        "Pages using catfix",
        "Pages with 4 entries",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "efan (“broad”) + -der → efander (“space”)",
          "type": "example"
        },
        {
          "text": "tewl (“dark”) + -der → tewlder (“darkness”)",
          "type": "example"
        },
        {
          "text": "byw (“lively”) + -der → bewder (“liveliness”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Forms abstract noun"
      ],
      "tags": [
        "masculine",
        "morpheme"
      ]
    }
  ],
  "word": "-der"
}