rudimento
Rudimento is an Italian noun that denotes a rudiment or rudiments: a basic element, principle, or skill that forms the foundation of a subject or activity. In everyday language, it can refer to the initial knowledge required to begin learning something, such as the rudimenti of a language or of mathematics. The plural form is rudimenti. The word derives from Latin rudimentum, meaning first principle or element, used to express the idea of something at an early, undeveloped stage.
In music, especially percussion, rudimenti are the fundamental drumming patterns used as exercises to develop technique,
Beyond music, rudimenti are used metaphorically to describe the basic building blocks of any field. Mastery