pyra@Everything2.com:
Neat!
Also known as pyramid, one of the many treasures to be collected in the game Adventure (or ADVENT)..
Because the original version of Adventure was written in such a way that only the first 4 characters of each word were significant, old hands at the game tended to zip through parts by only typing said first four letters. Thus, "pyramid" was shortened to "pyra"...
Neat!