刀

• 刂 (when used as a right radical component)
• ⺈ (when used as a top component)

刀 (Kangxi radical 18, 刀+0, 2 strokes, cangjie input 尸竹 (SH), four-corner 1722₀, composition ⿹𠃌丿)

1. Kangxi radical #18, ⼑.

• Appendix:Chinese radical/刀
• 叨, 忉, 㧅, 旫, 朷, 灱, 糿, 舠, 虭, 釖, 䬢, 魛(鱽)
• 辺, 䫸, 鳭(𱉈), 召, 叧, 屶, 芀, 辧, 齊, 䐡, 韲

• ㄉ (Zhuyin alphabet)
• ㆵ (Bopomofo extended character)

• Kangxi Dictionary: page 135, character 24
• Dai Kanwa Jiten: character 1845
• Dae Jaweon: page 304, character 4
• Hanyu Da Zidian (first edition): volume 1, page 319, character 12
• Unihan data for U+5200

Pictogram (象形) – a knife. The original form was 𠚣, which can be found in a variant of 利, 𥝢 (in turn used on the top of the character 黎).

Unclear. Here are several proposals:

• Schuessler (2007) considers this to be an area word or a word widely borrowed from Chinese into other languages; compare Proto-Karen *ʔdɔ (“knife”), Jingpho [script needed] (n³¹-do³¹, “short knife”), Proto-Vietic *-taːw (“knife”), Bulo Stieng taaw;
• Stephen Baron posits Proto-Sino-Tibetan *s-ta-w, with a sparsely attested suffix *-w retained in Sinitic yet lost in Tibeto-Burman, yielding Proto-Tibeto-Burman *s-ta (“knife; axe; sword”); compare Tibetan སྟ་རེ (sta re, “axe; hatchet”), Burmese ဓား (dha:, “knife; sword”), Proto-Loloish *ta² (“knife”) (STEDT);
• Starostin derives it from Proto-Sino-Tibetan *tā̆w ~ *dā̆w, comparing it to Tibetan སྟེའུ (ste'u, “carpenter's axe, adze”) and Jingpho nhtu (“sword”).

刀

1. knife; blade (Classifier: 把 m c g h j mb md w x; 張／张 c h; 叢／丛 mn; 支 mn mn-t)
2. single-edged sword; cutlass
3. Classifier for sets of one hundred sheets of paper.
4. Classifier for incisions with a knife, blade, single-edged sword, etc.
   • 2018, “心肝插一刀”, in 我若是黃倩倩 [CHANGE]‎^[2], performed by 黃妃 [Huang Fei]:

     愛將我的我的心肝插一刀 [Taiwanese Hokkien, trad.]
     爱将我的我的心肝插一刀 [Taiwanese Hokkien, simp.]

     ài chiong góa ê góa ê sim-koaⁿ chhah chi̍t to [Pe̍h-ōe-jī]

     Love has stabbed my, my heart with a knife

5. (neologism, Internet) to bargain; to negotiate on price

   • 轉一張1026上海演唱會門票，原價880，可小刀。 [MSC, trad.]
     转一张1026上海演唱会门票，原价880，可小刀。 [MSC, simp.]

     From: [3]

     Zhuǎn yī zhāng 10 26 shànghǎi yǎnchànghuì ménpiào, yuánjià 880, kě xiǎo dāo. [Pinyin]

     Reselling an October 26 Shanghai concert ticket, original price 880, small negotiations available.

6. a surname (only common among Tai people)

   刀世勛／刀世勋  ―  Dāo Shìxūn  ―  Dao Shixun (Chinese politician and the last native chief of Xishuangbanna)

• (knife):

• (to bargain):

Others:

• → Khmer: ដាវ (daaw)
• → Vietnamese: dao
• → White Hmong: tob
• → English: dao

From English dollar.

刀

1. (Mandarin, neologism, colloquial) dollar

• (Cantonese) 蚊 (wén)

(Second grade kyōiku kanji)

• Go-on: と (to)、とう (tō, Jōyō)^{←たう (tau, historical)}
• Kan-on: とう (tō, Jōyō)^{←たう (tau, historical)}
• Kun: かたな (katana, 刀, Jōyō)
• Nanori: き (ki)、ち (chi)、わき (waki)

From Old Japanese. 刀 first appears in the Nihon Shoki of 720 CE.^[1] The furigana カ・タ・ナ for the phonetic attestation of katana only appears centuries later, however, the reading of 刀 in the Nihon Shoki and the Man'yoshu has been generally interpreted as identical to the reconstructed Proto-Japonic *katana.

Commonly suggested as a compound of 片 (kata, “one side”) + な (na, “edge”).^[2][3][4] This na element is spelled in monolingual Japanese sources as 刃 (“edge, blade”), but there is no historical attestation for any na reading for this character. A comparison with Middle Korean ᄂᆞᆶ〮 (nólh, “blade”) and modern Korean 날 (nal) suggests a Koreanic origin for this latter element. Vovin suggests a Old Korean coordinate term *xʌtʌŋ-nʌrh, due to the nature of the introduction of the specific type of single-edged sabers that are used with katana, mostly introducd from Korea from the 11th century onwards.^[5] Compare 直刀 chokuto for a more common reading of 刀 (“sword”) prior to the 11th century.

• (Tokyo) かたな [kàtánáꜜ] (Odaka – [3])^[3][6][7]
• (Tokyo) かたな [kàtáꜜnà] (Nakadaka – [2])^[3][6][7]
• IPA^(key): [ka̠ta̠na̠]

刀(かたな) • (katana) 

1. [from 720] (weaponry) a single-edged sword, such as a katana

   Coordinate terms: 剣 (tsurugi, “double-edged sword”), 脇差 (wakizashi, “traditional Japanese shortsword”), 短刀 (tantō, “traditional Japanese knife or dagger”), 大小 (daishō, ““big and small”: the katana and wakizashi as a set”)

   • 1999 September 23, “鎧(よろい)武(む)者(しゃ)ゾンビ [Armored Musha Zombie]”, in Vol.5, Konami:

     怨(おん)念(ねん)により蘇(よみがえ)った武(む)者(しゃ)。闇(やみ)雲(くも)にふりまわすカタナに注(ちゅう)意(い)。

     Onnen ni yori yomigaetta musha. Yamikumo ni furimawasu katana ni chūi.

     A musha reanimated by deep hatred. Watch out when he brandishes his katana.

2. [from 934] a small single-edged blade

   Synonym: 切れ物 (kiremono)

/tau/ → /tɔː/ → /toː/

Ultimately from Middle Chinese 刀 (MC taw). Compare modern Mandarin 刀 (dāo).

First cited as an independent noun to a text from 1895.^[2] Cited in compounds since at least the 800s CE.^[2]

• (Tokyo) とー [tóꜜò] (Atamadaka – [1])^[3][6][7]
• IPA^(key): [to̞ː]

刀(とう) • (tō) ^{←たう (tau)?}

1. [from 800s] sword, knife, blade

刀(とう) • (tō) ^{←たう (tau)?}

1. [from 1908] a sword, a katana

   Synonyms: 刀 (katana), 刀剣 (tōken)

2. [from 1895] a scalpel, such as that used by a surgeon

   Synonym: メス (mesu)

3. [from 1913] a kind of bronze or copper money in ancient China, shaped a bit like a sword

   Synonyms: 刀銭 (tōsen), 刀泉 (tōsen)

From Middle Chinese 刀 (MC taw).

• (SK Standard/Seoul) IPA^(key): [to̞]
• Phonetic hangul: [도]

Wikisource

刀 (eumhun 칼 도 (kal do))

1. hanja form^? of 도 (“sword; knife”) [affix]

• 국제퇴계학회 대구경북지부 (國際退溪學會 大邱慶北支部) (2007). Digital Hanja Dictionary, 전자사전／電子字典. [5]

刀 (*-two)

1. as well; too; either, or (negative) neither, nor

• Middle Korean: -도〮 (-twó)
  • Korean: -도 (-do)

刀: Hán Nôm readings: đao, dao, đeo

1. chữ Hán form of đao
   1. single-edged sword
   2. Kangxi radical 18—‘knife’
2. chữ Hán form of dao (“knife”)

• Nom Foundation