针 Origin — Chinese Character Wiki

zhēn HSK4

needle

Simplified form of 針. Phonosemantic compound. 钅 represents the meaning and 十 represents the sound.

Components

钅 Meaning component

jīn metal

钅 is a component form of 金.

十 Sound component

shí ten

Change in sound

针 and 十 don't sound similar in modern Mandarin due to historical phonetic changes. They were more similar in Old Chinese.
针 *t.[k]əm
十 *t.[g]əp

Phonosemantic compound. 釒 represents the meaning and 十 represents the sound.

釒 Meaning component

jīn metal

十 Sound component

shí ten

Change in sound

針 and 十 don't sound similar in modern Mandarin due to historical phonetic changes. They were more similar in Old Chinese.
針 *t.[k]əm
十 *t.[g]əp

	Middle Chinese	Old Chinese	Gloss
Baxter-Sagart	tsyim	t.[k]əm	needle