The DWB's second edition published in 1998, is known to be the earliest documentation of the term in 1846 and 1848 Also the index card for the dictionary, which is kept in the Berlin-Brandenburg Acadamy of Sciences, does not contain any earlier entries.
The DWB's second edition published in 1998, documents the earliest uses of the term as occurring in 1846 and 1848. Aufl. Leipzig, Stuttgart 1983ff s. v. ahoi In addition, the original index cards for the dictionary, which are kept in the Berlin-Brandenburg Acadamy of Sciences, do not contain any earlier entries.