博大
bó​dà

vast

博 bó plentiful, gamble

Original meaning: fight

Phonosemantic compound. 盾 represents the meaning and 尃 represents the sound. Based on the original meaning "fight", which later shifted to "win", "plentiful", and "gamble".

Components

盾
盾 Meaning component
dùn shield

Depicts a shield. Modern form looks like 十.

Change in meaning
盾 hints at the original meaning of 博, "fight", which is no longer the most common meaning of 博 in modern Mandarin.
Change in form
Due to historical stylistic changes, this component is less similar to 盾 than it was in ancient scripts.
尃
尃 Sound component
fū, bù, fǔ state, announce
Change in sound

Character Evolution

Bronze form
Bronze Mid Western Zhou ~900 BC
Bronze form
Bronze Mid Western Zhou ~900 BC
Bronze form
Bronze Late Western Zhou ~800 BC
Bronze form
Bronze Late Western Zhou ~800 BC
Bronze form
Bronze Late Western Zhou ~800 BC
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-Sagartpakpˤak broad

說文解字

《說文》：“博，大，通也。从十，从尃。尃，布也。”

Sources

Character origin
漢語多功能字庫
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)

大 dà, dài big

Depicts an adult man facing forward and standing erect. The meaning later shifted to "big".

Character Evolution

Oracle form
Oracle Bone ~1250-1000 BC
Oracle form
Oracle Bone ~1250-1000 BC
Bronze form
Bronze Early Western Zhou ~1000 BC
Bronze form
Bronze Late Western Zhou ~800 BC
Bronze form
Bronze Late Western Zhou ~800 BC
Bronze form
Bronze Late Warring States ~250 BC
Bronze form
Bronze Late Warring States ~250 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Warring States (Chu) 475-221 BC
Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Qin 221-206 BC
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Component uses

Meaning (9 of 21 verified)

去太奇套尖奈赤契夸奎奢奕叁奘夯奁夼尜奩奓𢧤

Iconic (21)

天因美夫央亦乘衡牵熊夹爽奚鬱粦耎夨叕夾椉業

Sound (6 of 11 verified)

太达夺泰驮耷奪馱忕羍旲

Simplified (4)

类奖奋庆

Unknown (0 of 2 verified)

爨䙴

Deleted (1)

业

Remnant (1)

椉

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartdaHlˤat-s (MC F!)big
dajHlˤa[t]-s big

說文解字

《說文》：“大，天大、地大、人亦大，故大象人形。”

Sources

Character origin
季旭昇《說文新證》p.764
Readings & variants
Unicode
Historical pronunciations
Baxter-Sagart
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)