Answer: rudiments

AnswerCrossword Clue
RUDIMENTSFirst principles.
rudimentsRUDIMENT, a basic principle or element
rudimentsA basic pattern used by drummers, such as the roll, the flam, and the paradiddle
rudimentsAn elementary or primitive form of something
rudimentsAn undeveloped or immature part or organ, esp. a structure in an embryo or larva that will develop into an organ, limb, etc
rudimentsThe first principles of a subject