Amazing Chinese Characters (760) Alone - 孑

The big seal script of character Alone is

A little child with only one arm. 

Let's us compare the big seal script of character Child (Post 21)

A child with both arms.

Which arm is missing? Depends on what you think the position of the child, if the child is facing us, he is missing right arm; if he is back to us, he is missing left arm. By 《說文解字》(the most famous dictionary in Chinese history, it is missing left arm, therefore, the child is back to us. 

Normal people have two arms, single arm implies not paired, no partner, alone.

The small seal script of character Alone is

Right arm is missing? Which conflicts with the big seal script. Therefore, even 《說文解字》might make mistakes. What I think is that it just shows one arm missing, which arm missing doesn't matter.

The clerical script of character Alone is

The middle is slightly slanted line, left lower-right higher . 

In comparison, the clerical script of character Child is

Middle is horizontal line.

The Pinyin for the character is Jie2.

I want to point out that character 孑 is not a popular character, used rarely. 孤单 is used often for Alone.