The shell bone script for character Eight is
which was character Separate originally. We can understand why. One curve stroke on the left and another on the right, just like two separated halfs.
Why did ancient Chinese take Separate as Eight? Because to separate something is to cut it by half, Chinese had used Hexadecimal system from ancient time to 1949. Half in hexadecimal system is eight. Separate something equally is to make two Eights.
The small seal script for Eight is
similar to the shell bone script but very symmetrical.
The clerical script for Eight is
The current standard printing script is
very similar to its clerical script.
Its Pinyin is Ba1.
The character had been used for number eight as early as 3000 years ago. So people created a new character for Separate or Divide. Let's see its shell bone script,
We see the charater is character 八, plus a
which means Knife. Separate is using a knife to cut some thing to two parts. The new character is more like a verb, and original one is more like an adjective.
The big seal script for Separate is
The small seal script for Separate is
All are similar to shell bone script.
Its clerical script is
which has been used since 2000 years ago.
Its current standard printing script is
very similar to clerical script.
Its Pinyin is Fen1.