"せい" meaning in Japanese

{
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "せよ"
      },
      "expansion": "せよ (seyo)",
      "name": "ja-r"
    },
    {
      "args": {
        "1": "来い",
        "2": "こい"
      },
      "expansion": "来(こ)い (koi)",
      "name": "ja-r"
    },
    {
      "args": {
        "1": "くれ"
      },
      "expansion": "くれ (kure)",
      "name": "ja-r"
    }
  ],
  "etymology_text": "⟨seyo⟩ → ⟨sey⟩ → /sei/\nOne theory suggests a sound change from せよ (seyo), dropping the last vowel, from original seyo to sey (= sei). Compare 来(こ)い (koi), くれ (kure).",
  "forms": [
    {
      "form": "sei",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "せい • (sei)",
      "name": "ja-verb form"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Classical Japanese",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "kind": "other",
          "name": "Japanese terms with non-redundant manual transliterations",
          "parents": [
            "Terms with non-redundant manual transliterations",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ruby": [
            [
              "面",
              "めん"
            ],
            [
              "倒",
              "どう"
            ],
            [
              "見",
              "み"
            ],
            [
              "安",
              "あん"
            ],
            [
              "心",
              "しん"
            ]
          ],
          "text": "面倒を見てやるから、安心せい。\nMendō o mite yaru kara, anshin sei."
        }
      ],
      "form_of": [
        {
          "extra": "suru, “to do”",
          "word": "する"
        }
      ],
      "glosses": [
        "Alternative imperative of する (suru, “to do”)"
      ],
      "id": "en-せい-ja-verb-gOkh~Zkq",
      "links": [
        [
          "Classical Japanese",
          "Classical Japanese"
        ],
        [
          "する",
          "する#Japanese"
        ]
      ],
      "raw_glosses": [
        "(Classical Japanese, archaic, Western Japanese) Alternative imperative of する (suru, “to do”)"
      ],
      "synonyms": [
        {
          "word": "せよ"
        }
      ],
      "tags": [
        "Classical",
        "Japanese",
        "Western",
        "alternative",
        "archaic",
        "form-of",
        "imperative"
      ]
    }
  ],
  "word": "せい"
}

{
  "categories": [
    "Japanese entries with incorrect language header",
    "Japanese hiragana",
    "Japanese links with redundant alt parameters",
    "Japanese links with redundant wikilinks",
    "Japanese non-lemma forms",
    "Japanese terms with non-redundant manual transliterations",
    "Japanese terms with redundant sortkeys",
    "Japanese verb forms"
  ],
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "せよ"
      },
      "expansion": "せよ (seyo)",
      "name": "ja-r"
    },
    {
      "args": {
        "1": "来い",
        "2": "こい"
      },
      "expansion": "来(こ)い (koi)",
      "name": "ja-r"
    },
    {
      "args": {
        "1": "くれ"
      },
      "expansion": "くれ (kure)",
      "name": "ja-r"
    }
  ],
  "etymology_text": "⟨seyo⟩ → ⟨sey⟩ → /sei/\nOne theory suggests a sound change from せよ (seyo), dropping the last vowel, from original seyo to sey (= sei). Compare 来(こ)い (koi), くれ (kure).",
  "forms": [
    {
      "form": "sei",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "せい • (sei)",
      "name": "ja-verb form"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "Classical Japanese",
        "Japanese terms with archaic senses",
        "Japanese terms with usage examples",
        "Requests for translations of Japanese usage examples"
      ],
      "examples": [
        {
          "ruby": [
            [
              "面",
              "めん"
            ],
            [
              "倒",
              "どう"
            ],
            [
              "見",
              "み"
            ],
            [
              "安",
              "あん"
            ],
            [
              "心",
              "しん"
            ]
          ],
          "text": "面倒を見てやるから、安心せい。\nMendō o mite yaru kara, anshin sei."
        }
      ],
      "form_of": [
        {
          "extra": "suru, “to do”",
          "word": "する"
        }
      ],
      "glosses": [
        "Alternative imperative of する (suru, “to do”)"
      ],
      "links": [
        [
          "Classical Japanese",
          "Classical Japanese"
        ],
        [
          "する",
          "する#Japanese"
        ]
      ],
      "raw_glosses": [
        "(Classical Japanese, archaic, Western Japanese) Alternative imperative of する (suru, “to do”)"
      ],
      "synonyms": [
        {
          "word": "せよ"
        }
      ],
      "tags": [
        "Classical",
        "Japanese",
        "Western",
        "alternative",
        "archaic",
        "form-of",
        "imperative"
      ]
    }
  ],
  "word": "せい"
}

{
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "soft-redirect",
  "redirects": [
    "所為"
  ],
  "word": "せい"
}

{
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "soft-redirect",
  "redirects": [
    "聖",
    "精",
    "世",
    "背",
    "井",
    "正",
    "生",
    "制",
    "姓",
    "性",
    "星",
    "勢",
    "製",
    "静",
    "政",
    "斉",
    "成",
    "靖"
  ],
  "word": "せい"
}