It could be three words: mono no ki. Mono (as 物) is generally "thing," which doesn't really work, but we can assume it's being used as simply mono (in loan form

It could be three words: mono no ki. Mono (as 物) is generally "thing," which doesn't really work, but we can assume it's being used as simply mono (in loan form, モノ), short for "monospace," here. No (の) is a particle indicating possession, and "ki" (as 気) is "spirit" or "essence" (with different kanji it could be quite a few other things; Japanese has a lot of homophones). So I suppose we could translate the name to "the essence of monospace," if we were so inclined, and transliterate it back to Japanese as モノの気.