Long ago, in the Egyptian hieroglyph the letter M meant "water".
It looks like this: .
Centuries later it evolved.
Proto-sinaitic wrote it differently.
Like this: .
it started to look like a proper M!
Paleo-hebrew was a little more abstract than the Phoenicians more like
The before last evolution, Aramaic.
This has gone off track the letter M doesn't look like one now:
this looks like modern Europeans now. But there is a difference: