Other forms: media, mediums
Medium means neither large nor small, but in between. A medium size, medium heat, medium rare.
As a noun it has three quite different plurals in use: media for means of communication, mediums for people who claim to contact the dead, and media again in art for materials. Medium rare beef is about fifty-five degrees inside. The Latin means middle.
1adjectivemediumNeither large nor small.
“Cook the onions over a medium heat until they are soft.”
2nounmeansA means by which something is done or communicated.
“English is the medium of instruction at the international school.”
medium is a middle size, or a means.
Latin medium is the neuter of medius, middle. Middle, mid and median come from the same root.
Proto-Indo-European
*médʰyos — between
Proto-Italic
*meðjos
Latin
medium
English, today
medium
Built from
Latin medium, neuter of medius (“middle”), from Proto-Italic meðjos, from Proto-Indo-European médʰyos (“between”). Compare middle. a doublet of mid and medio and media and meson.
Etymology from Wiktionary, CC BY-SA