In the second half of the 16th century the neologism "Nederduytsch" (literally: Nether-Dutch, Low-Dutch) appeared in print, in a way combining the earlier "Duytsch" and "Nederlandsch" into one compound. The term was preferred by many leading contemporary grammarians such as Balthazar Huydecoper, Arnold Moonen and Jan ten Kate because it provided a continuity with Middle Dutch ("Duytsch" being the evolution of medieval "Dietsc"), was at the time considered the proper translation of the Roman Province of Germania Inferior (which not only encompassed much of the contemporary Dutch-speaking area / Netherlands, but also added classical prestige to the name) and amplified the dichotomy between Early Modern Dutch and the "Dutch" (German) dialects spoken around the Middle and Upper Rhine which had begun to be called "overlantsch" of "hoogdutysch" (literally: Overlandish, High-"Dutch") by Dutch merchants sailing upriver. Though "Duytsch" forms part of the compound in both Nederduytsch and Hoogduytsch, this should not be taken to imply that the Dutch saw their language as being especially closely related to the German dialects spoken in Southerwestern Germany. On the contrary, the term "Hoogduytsch" specifically came into being as a special category because Dutch travelers visiting these parts found it hard to understand the local vernacular: in a letter dated to 1487 a Flemish merchant from Bruges instructs his agent to conduct trade transactions in Mainz in French, rather than the local tongue to avoid any misunderstandings. In 1571 use of "Nederduytsch" greatly increased because the Synod of Emden chose the name "Nederduytsch Hervormde Kerk" as the official designation of the Dutch Reformed Church. The synods choice of "Nederduytsch" over the more dominant "Nederlandsch", was inspired by the phonological similarities between "neder-" and "nederig" (the latter meaning "humble") and the fact that it did not contain a worldly element ("land"), whereas "Nederlandsch" did.