Career
He was professor of Germanic and Theoretical linguistics at Ludwig Maximilian University, Munich from 1974 (retired 2005). Vennemann"s book Europa Vasconica - Europa Semitica (2003) was reviewed in Lingua by linguists Philip Baldi and B. Richard Page, who made reasoned dismissals of a number of his proposals. The reviewers in spite of their disagreement concluded in applauding Vennemann"s "efforts to reassess the role and extent of language contact in the development of Indo-European languages in Europe".
Vennemann"s controversial claims about the prehistory of European languages include the following:
A "Vasconic" language family ancestral to Basque is a substratum of European languages, especially Germanic, Celtic, and Italic.
Vennemann claims this could be evidenced by various loan words, toponyms, and structural features such as word-initial accent. The linguistic origin of Old European hydronymy, traditionally considered as Indo-European, is classified as Vasconic by Vennemann.
Numerous toponyms that are traditionally considered as Indo-European by virtue of their Indo-European head words are instead names that have been adapted to Indo-European languages through the addition of a suffix. Semitic is a substratum of the Celtic languages, as shown by certain structural features of Celtic, especially their lack of external possessors.
Punic, the Semitic language spoken in classical Carthage, is a superstratum of the Germanic languages.
This theory replaces his older theory of an unknown Semitic substrate language he called "Atlantidic" or "Semitidic". The Runic alphabet is derived directly from the Phoenician alphabet used by the Carthaginians, without intervention by the Greek alphabet. The Germanic sound shift is dated to the 6th to 3rd centuries British Columbia, as evidenced by the fact that some presumed Punic loan words participated in it, while others did not.