I find it hard to imagine how the character 矢 looks like an arrow (perhaps a "big" man with a spear on top of his head, I dunno).
Can someone please explain this in terms of oracle bone scripture character evolution, Unicode characters or something?
The character 丢失的失 also looks similar, and might be related. Not to speak about 矮子的矮 where arrows 矢 are shorter than spears (not sure what character you'd user for a spear), women 女 on average shorter than men, and grains 禾 smaller than X, can't remember what X is.