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Etymology data from Wiktionary via Wiktextract (CC BY-SA 4.0). Chinese character data from the 說文解字, the Taiwan MOE 國語辭典簡編本 (CC BY-ND 3.0 TW) and HSK/TOCFL lists.

Explanations are written by a local model (gemma4) and only published after a verification pass against the cited sources. How it works.

Chinese

亿

/i²¹⁴/
Kunqu gongche notation for the note high ti (7̇).
  • HSK 2

Etymology graph

  • inherited
  • borrowed
  • derived
  • parts
  • meaning component
  • sound component
  • related
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Origin

Etymology 1

Simplified from 億 (意 → 乙)

Etymology 2

From 亻 (denoting one octave higher in Kunqu) + 乙 (yǐ).

Etymology 3

From 亻 (denoting one octave lower in Cantonese opera) + 乙 (ji¹, ji⁶).

From Wiktionary, CC BY-SA 4.0.

Lineage

  • simplified fromChinese億 “hundred million (100,000,000) (sometimes written as 1,0000,0000)”
    • meaningChinese人 “man; person; people (Classifier: 個／个 m c; 隻／只 h)”
    • soundChinese意 “wish; desire; intention”
  • partChinese亻 “Side form of the person (人 (rén)) radical.”
  • partChinese乙 “The second of the ten heavenly stems (天干 (tiāngān))”
    • borrowedJapanese乙 “second”

Meanings

character
  1. Kunqu gongche notation for the note high ti (7̇).

How 亿 was written 字形演變

  1. 亿 in Bronze script
    Bronze
    金文
    Shang–Zhou
  2. 亿 in Small seal script
    Small seal
    說文小篆
    Shuowen, c. 100 CE
  3. 亿 in Regular script
    Regular
    楷書
    since c. 200 CE

Historical forms collected by the legacy etymfun dataset; most characters have several attested variants.

Sources

  • Historical glyph forms (zdic.net 字形演变) — Rights unverified
  • HSK / TOCFL word lists — Facts (levels)
  • Wiktionary (via Wiktextract / kaikki.org) — CC BY-SA 4.0
  • Wiktionary: 亿