Background

Generally, it is said that English is a difficult language to learn for Japanese people. This phenomenon results from Japanese being different from English in the origin and structure of words. Many dictionaries to consult and learn English words exist, but they seem to be inadequate in helping people study English words well. Thus, Indo-European roots were aimed at to solve this problem. Can the learning of English words be conducted deeply using them? The project of the Hyper English Word Study Dictionary with Indo-European roots started based on this thought.[1][2][3]