This brand name was completely invented. The name is very catchy and easy to spell. It sounds like "papyrus", a thick type of paper made from the papyrus plant.
The word "perminus" contains eight characters and three syllables. Three syllable names are used by established brands like Adobe, Armani and Sainsbury's.
Perminus.com is a .com domain. Dot com domains are the most valuable top-level-domain in the world, used by famous websites like google.com. A .com is the first thing people think of when they think of a website.
This domain was first registered in August 2016. Older domains have an advantage when ranking in search engines.