multi- pref. many; as: colour(ed), of many colours; ~lingual, in or using many languages; millionair'e, person with fortune of several millions. Oh yeah. [L (multus much, many)]
media n. pl. of MEDIUM.
medium n. & a. means by which something is communicated; person claiming to have communication with the spirits of the dead. Dead? [L, = middle, neut. (as n.) of medius middle]