永続

1. Origins, structure, and basic meaning

• Structure: 永続 is a noun and irregular intransitive verb read えいぞく, meaning continuity or lasting persistence.
• Basic usage: 永続する describes something continuing, while the causative 永続させる means keeping it going.
  • 一時的な人気が永続するとは限らない。 says that temporary popularity does not necessarily last; 制度を永続させるには定期的な見直しが必要だ。 says that regular review is needed to keep a system going.

2. Common pitfalls and similar expressions

• 永続するとは限らない
  • とは限らない denies that continued popularity is guaranteed.
• 永続させる
  • The causative describes an agent maintaining a system or state so that it continues.
• 一時的 and 永続
  • 一時的 is limited in duration, while 永続 points to lasting continuity.