IPA: //ˈkæθəˌlɪkən//
KK: /kæθəˈlɪkən/
A solution or remedy that is believed to cure all problems or diseases.
Many people hope to find a catholicon for their health issues.
Catholicon is derived from the Greek "katholikos" (meaning universal) and the suffix "-on" (often used in nouns). The term originally referred to something that is universal or general, particularly in a religious context, as it relates to the whole body of the church.
Think of 'universal' ('katholikos') to remember that 'catholicon' refers to something that is general or applicable to all, especially in a religious sense.