The Old French descepline referred to punishment, correction, and suffering. The latin origin of the word “discipline” is “disciplina” meaning “instruction and training”. It’s derived from the root word discere — “to learn.” Therefore, discipline is to study, learn, train, and apply a system of standards.The word “disciple” comes from the Latin word discipulus meaning “student” therefore a disciple is a student or a follower.
“For the Spirit God gave us does not make us timid, but gives us power, love and self-discipline”. 2 Timothy 1.7

