秘
mì HSK4

secret, mysterious

Phonosemantic compound. 礻 represents the meaning and 必 represents the sound. Originally written as 祕. The 礻 component was later corrupted to 禾.

Components

禾
禾 Simplified component
hé grain stalk

Corruption of the 礻 component in the original character 祕.

必
必 Sound component
bì surely

Historical Pronunciations

Old Chinese
Zhengzhangmpriɡs

Sources

Character origin
李学勤《字源》p.6
Readings & variants
Unicode
Historical pronunciations
Zhengzhang Shangfang