This new word is a portmanteau, combining two words.

Please tell me the stem of this word.

This imperial rescript is a message conveying the emperor's will to the people.

This book contains a lot of rare words.

This book is difficult to understand because it contains many difficult words.

His rigid personality sometimes pushes people away.

He has a rigid personality.

He is good at learning foreign languages.

He was struggling to understand his internal language.

The Goto Islands are located in the southwestern part of Japan.