The word 'steamship' is a transparent compound formed in the early 19th century during the Industrial Revolution to name a new technological innovation. The first element, 'steam', derives from the Old English stēam, referring to vapor or hot exhalation, which became the term for the pressurized water vapor used to drive engines. The second element, 'ship', originates from the Old English scip, a common Germanic term for a seafaring vessel. The compound's logic is perfectly literal: a 'steamship' is a 'ship' propelled by 'steam' power, directly contrasting with earlier sailing ships. It encapsulates the historical shift from wind to mechanical propulsion in maritime transport.

Structure: steam (vapor) + ship (vessel) steam: From Old English stēam (vapor, hot exhalation), functioning as the source of power. ship: From Old English scip (vessel, boat), functioning as the base noun.