月下老人

1. • the god of matchmaking

     Chinese folk religion

2. • matchmaker

     idiom

Character by character

• 月(yuè)moon
• 下(xià)down
• 老(lǎo)prefix used before the surname of a person or a numeral indicating the order of birth of the children in a family or to indicate affection or familiarity
• 人(rén)person