秘笈 Origin — Chinese Character Wiki

mìjí

secret manual

mì 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.

hé grain stalk

Corruption of the 礻 component in the original character 祕.

必 Sound component

bì surely

	Old Chinese
Zhengzhang	mpriɡs

Phonosemantic compound. ⺮ represents the meaning and 及 represents the sound.

⺮ Meaning component

zhú bamboo

⺮ is a component form of 竹.

及 Sound component

jí extend