The term 'program-level' is a compound word formed by combining 'program' and 'level'. 'Program' originates from the Greek word 'programma', meaning 'a written public notice', and 'level' comes from the Old French 'livelle', meaning 'a tool for measuring horizontal alignment'.

The word 'program' evolved from the Greek 'programma' through Latin 'programma' and Old French 'programme', while 'level' transitioned from Old French 'livelle' to Middle English 'level'.

Initially, 'program' referred to a public notice or proclamation, but it evolved to mean a planned series of events or activities. 'Level' originally referred to a tool for measuring alignment, but now also denotes a degree or stage of intensity.