The word "Protophan" is spelled phonetically as /prəʊtəʊfæn/, with the stress being on the second syllable. The spelling of this word can be explained by breaking it down into its two root words, "proto" and "phan". "Proto" means "first" or "primitive", while "phan" means "show" or "appear". Thus, "Protophan" can be interpreted as something that appears or is displayed for the first time, such as a pioneering technology or a groundbreaking concept.