悌
tì

brotherly

Fraternal 弟 respect 忄; 弟 also provides the pronunciation

Components

忄
忄 Meaning component
xin, xīn heart
弟
弟 SoundMeaning component
dì, di younger brother

Character Evolution

Seal form
Seal Shuowen ~100 AD
Clerical form
Clerical Three Kingdoms (Cao Wei) 222-280 AD
Regular Modern

Historical Pronunciations

Middle ChineseOld Chinese
Zhengzhangdiːlʔ
diːls
Unicodedhèi

說文解字

善兄弟也。从心弟聲。經典通用弟。

Sources

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