The name Lusitania, which refers to a Roman province that corresponds closely with present-day Portugal, is rooted in the region's historical context. The people of Lusitania were known for their warrior-like nature, making them difficult for the Romans to subdue. Actions consistent with plunder were common among the inhabitants, who were described as rough and unrefined in their behavior. This historical background is mentioned in Cunard's ship naming records and serves to highlight the challenging traits of the Lusitanian people.

Over time, the name Lusitania became more casually referred to as Lucy in popular language. This simplification reflects how historical terms can evolve into more colloquial forms. The information about the naming of the ship Lusitania, detailed in Erik Larson's book "Dead Wake: The Last Crossing of the Lusitania," underscores the importance of history in shaping cultural references and maritime legacy.