Alas, it's just English.

While I was trying to sleep last night I kept thinking about the word "sleep". There is sleep, sleeping, slept. You GO to SLEEP.  Why did they also make the word "asleep"? You FALL asleep.  Then I started wondering if there were other words like that.  I thought of AWASH, which doesn't necessarily have anything to do with 'washing'. Example - "The streets were awash with shoppers." It seemed really interesting at the time - and I kept thinking about how I had never thought of it before.  Now in the waking hours - when I am AWAKE it doesn't seem nearly as exciting. You may be thinking right now of yelling at me - maybe something like "AVAST!" ???? So yes, now I will stop. :-)