the.com/orderly

means A hospital worker who handles the physical, unglamorous tasks of patient care — moving beds, transporting patients, cleaning up — that keep the ward running.

from From 'order,' in the military sense of a soldier assigned to carry orders and do assigned duties for an officer — an 'orderly' was literally the one who followed orders, doing whatever task was commanded. The word moved from army camps into hospitals (many early hospital staff structures borrowed military organization and vocabulary), where the 'orderly' kept the same role: not a specialist, just the person who does whatever needs doing, on command.