A name built from two body parts
The word rhinoceros comes through Latin from the ancient Greek rhinókerōs, a compound meaning “nose-horned.” Its first part, rhin-, comes from rhis, “nose”; the second, -kerōs, comes from keras, “horn.” The word’s shape reflects how Greek compounds often use a shortened stem rather than simply placing two dictionary forms side by side.
A literal label, with a small twist
The name points to the horn’s position, not to what it is made of. A rhino’s horn grows from the skin and consists largely of keratin—the same structural protein found in hair and nails—rather than being a bony projection. So the ancient label is strikingly clear about what an observer sees, even if it does not describe the horn’s material.
That directness has survived the word’s passage into English: its Greek parts still make the animal’s defining feature legible inside its name.
