投案 Origin — Dong Chinese Dictionary

tóu'àn

surrender

tóu throw

Phonosemantic compound. 扌 represents the meaning and 殳 represents the sound.

Components

扌 Meaning component

shou, shǒu hand

扌 is a component form of 手.

殳 Sound component

shū weapon or tool

Change in sound

投 and 殳 don't sound similar in modern Mandarin due to historical phonetic changes. They were more similar in Old Chinese.
投 *[d]ˤo
殳 *[d]o

Character Evolution

Regular Modern

▼ More ▲ Less

Historical Pronunciations

	Middle Chinese	Old Chinese	Gloss
Baxter-Sagart	duw	[d]ˤo	throw

說文解字

《說文》：“投，擿也。从手，从殳。”

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)

àn table, case, incident

Phonosemantic compound. 木 represents the meaning and 安 represents the sound.

Components

安 Sound component

ān peaceful

木 Meaning component

mù tree

Character Evolution

Regular Modern

▼ More ▲ Less

Historical Pronunciations

	Middle Chinese	Old Chinese	Gloss
Baxter-Sagart	'anH	ʔˤa[n]-s	stool; tray

說文解字

《說文》：“案，几屬。从木，安聲。”

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)

投 tóu throw

Components

Character Evolution

Historical Pronunciations

說文解字

Sources

案 àn table, case, incident

Components

Character Evolution

Historical Pronunciations

說文解字

Sources

tóu throw

àn table, case, incident