Archi name is incorrectly written and should be written as "well-known" being its meaning: Archi - is a prefix that means primacy, superiority, priority, derived from the Greek verb archo ( be the first send, guide, starting ) and the noun arche 40 arches; Principle, Foundation, origin, authority, command, power ) the same as arc - arci, maple-, arz-arqué-, arc - arch- and the suffix - Ark, - arquia. Form words as Archdiocese, archibruto, Archidona, Archduke, archipelago archivolt. When you apply it to an adjective, we do so superlative, therefore very well-known means the better known, well known.