This is the 19th most frequent Korean word.
윤
The Korean word "윤" can mean "shine," "luster," or be a surname, depending on context.
Here, '윤' is used in '윤기', meaning 'shine' or 'glow', often describing smoothness or brightness, like someone’s skin or hair.
그의 얼굴에 윤기가 흘렀다.
His face had a shiny glow.
In this context, '윤' is derived from '윤달', meaning 'leap month', used in lunar calendars for adjustment.
매년 윤달이 돌아온다.
A leap month occurs every year.
In this sentence, '윤' refers to 'orbit', describing the path an object takes around another.