唁信
yàn​xìn

condolence letter

唁 yàn express condolence

Phonosemantic compound. 口 represents the meaning and 言 represents the sound.

Components

口
口 Meaning component
kǒu, kou mouth
言
言 Sound component
yán speech

Character Evolution

Seal form
Seal Shuowen ~100 AD
Regular Modern

Historical Pronunciations

Old Chinese
Zhengzhangŋrans

說文解字

弔生也。从口言聲。《詩》曰：“歸唁衞侯。”

Sources

Readings & variants
Unicode
Historical pronunciations
Zhengzhang Shangfang
Historical images
Academia Sinica
Etymology
Shuowen Jiezi (說文解字)

信 xìn trust

Conveys trusting (信) what a person (人) says (言). 人 is also a sound component.

Components

亻
亻 SoundMeaning component
rén person

亻 is a component form of 人.

Change in sound
言
言 Meaning component
yán speech

Character Evolution

Bronze form
Bronze Late Western Zhou ~800 BC
Bronze form
Bronze Mid Warring States ~300 BC
Bronze form
Bronze Late Warring States ~250 BC
Bronze form
Bronze Late Warring States ~250 BC
Bronze form
Bronze Late Warring States ~250 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 Western Han 202 BC-9 AD
Seal form
Seal Shuowen ~100 AD
Seal form
Seal Shuowen ~100 AD
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 Western Han 202 BC-9 AD
Clerical form
Clerical Eastern Han 25-220 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld ChineseGloss
Baxter-SagartsinHs-ni[ŋ]-s truthful

說文解字

《說文》：“信，誠也。从人，从言，會意。，古文从言省。訃，古文信。”

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)