Concerning the Cross and the Pole

[Havah]

I may have an answer to solve why it was written "Pole"

And in fact it's a cross.

Of course I don't know Aramaic or any crosses. But shall we consider this as hanging on pole??
http://www.youtube.com/watch?v=Kser22D0F0E
Check 4:20-4:35
A log was used to nail for the perpetuator.

Then hang the log on a straight pole. And that we have a cross-like pole.