How interesting, the word “Miniature” turns out not to derive from minimus (Latin), meaning “smallest”, but from miniare, meaning “to color with cinnabar or red lead”.
The word is connected to the practice of book illustration in the Middle Ages. You have probably seen images of medieval manuscripts with dense black text and a large, decorated initial letter. In the earliest bound books, they were not so ornate—just a big letter, colored red to stand out. In Italy, the verb miniare referred to the stage of painting red initials, usually left until last, and the art of illustration itself was called miniatura.
Over time, these initial decorations became increasingly complex, evolving into fully developed scenes with little figures, animals, and buildings. But, of course, since the scenes had to fit into the corner of a page, they were very small. And therefore, because a miniature in a book was like a tiny painting, the meaning of the word expanded—it came to denote any small version of something larger.

