Today's character 殳 is one of that. What does 殳 mean then? We can only know that lower part of 殳, which is 又, refers to hand. What is its upper part here? You might have said that was 几, which means a small table. Let us check its evolution history to double check: (image taken from http://chinese-linguipedia.org/)
|Learn one Chinese Character a day - 殳|
In ancient China, soldiers normally used a long rod with one end tied up with sharp stones or metals, as shown below. Thus 殳 is borrowed to mean such weapon.
Before that let us enjoy a Chinese calligraphy with 殳 inside: