archaism
🇺🇸
/ˈɑːrkiɪzəm/
🇬🇧
/ˈɑːkeɪɪzəm/
A word or style that is very old or old-fashioned.
The professor's lecture was filled with archaisms that made it hard to understand.
교수의 강의는 이해하기 어려운 고어들로 가득 차 있었다.