The Spanish word 'pomo' comes from the Latin word 'pomum', which meant 'fruit'. Over time, the meaning evolved from referring to fruit in general to specifically describing round, spherical objects that resemble the shape of fruit, particularly in the context of handles or knobs. The word also came to refer to perfume bottles, likely due to their typically round, fruit-like shape.

Some related Spanish words include 'manzana' (apple), which though not directly derived from 'pomum', belongs to the same semantic field of fruit terminology in Spanish. The word 'pomo' is relatively straightforward and commonly encountered in everyday Spanish, particularly when referring to doorknobs or decorative round handles.

While English doesn't have many direct cognates from Latin 'pomum', we can find its influence in words like 'pomander' (a ball of perfumes), 'pommel' (a rounded knob on a sword handle or saddle), and 'pomegranate' (literally 'seeded apple'). These words all retain a connection to the original meaning of roundness or fruit-like shape.