Words A-part.

So, I was thinking... about this word. Don't judge me.
It's really cool.

Um... here goes.

You've got the word "a-part"

Now, if you put "a-part" together like this-- apart-- it means separate.

However, if you separate it, like this -- a part-- it becomes inclusive.

Just like the word cleave, which carries two opposite meanings within itself.
When we use it in some contexts, it means "to bind." Like in the Bible, when God commands Adam to cleave unto his wife. There is a unity, a wholeness. But "cleavage" ... like in geology, or other things :)... means a separation. A cleaver divides.

Other words like cleave, which have two opposing meanings in the one word, are called contranyms. Wikipedia world has a list of them here.

Check it out. Could change your life.