A clever combination of "token" and "engine", this name could suit many token/crypto based brands. Alternative could be read as "tok" + "engine", with "tok" standing for "theory of knowledge" or an equivalent acronym.
The word "tokengine" contains nine characters and three syllables. Successful brands using three syllable names include Heineken, McDonald's and Delicious.
Tokengine.com is a dot-com domain. Dot com domains are the most prestigious domain extension in the world, used by famous websites like google.com. A dot-com is the first thing people think of when they think of a website.