Perhaps the most significant contributions of Professor A. Poruciuc were the ones regarding one of the most challenging problem of historical linguistics, namely the issue of old Germanic borrowings in the Romanian language. Here, A. Poruciuc was a real trailblazer, as important names in comparative linguistics from the end of the 19th century and even from the 20th century had categorically opposed the existence of such elements in Romanian. The fight against these old and ossified historiographical clichés was not easy. But the approaches proposed by A. Poruciuc, of wide erudition and interdisciplinary took into account the archaeological realities, in the context in which the research carried out after the 1950s brought to light a significant presence of old Germanic elements in the entire Carpathian Danubian area, and is difficult to imagine that this multisecular contact between the distant ancestors of the Romanians and these populations would not have left any kind of traces in the language.