Tethrarxitet

The tethrarxitet is equal to E100#^^^#4=E100#^^#^^#^^#100 in Extended Cascading-E Notation. The term was coined by Sbiis Saibian.

Etymology
The name "tethrarxitet" is based on the number tethrathoth, "arx-" meaning "citadel" in Latin, and "tet", from the prefix "tetra", meaning four.