The Spanish word 'pluma' comes directly from the Latin word 'pluma', which meant 'feather'. Over time, as feather quills became common writing implements, the Spanish word expanded its meaning to include both the original sense of 'feather' and the derived meaning of 'writing quill'. This semantic expansion reflects the historical use of feather quills as writing instruments.

Some related Spanish words include 'plumaje' (plumage), 'plumero' (feather duster), and 'plumín' (pen nib). All these words maintain a connection to either feathers or writing implements, showing how the original meaning has branched out into different but related concepts.

While English 'plume' and 'plumage' are cognates of Spanish 'pluma', coming from the same Latin root. A plume is a large, showy feather, and plumage refers to a bird's entire covering of feathers. The word 'plume' in English can also metaphorically refer to something you take pride in ('to plume oneself'), maintaining a connection to the decorative nature of feathers.