It has been suggested that this article be merged into Gentius. (Discuss) Proposed since January 2015.
Teuticus was an Illyrian that Gentius sent as an ambassador to the Romans to beg for truce. The other Ambassador was Bellus. The name of Teuticus was Latinised and the -icus suffix added at the end.
^Rome and the Mediterranean: Books XXXI-XLV of the History of Rome from its Foundation, ISBN 0-14-044318-5, 1976, page 560, "This inspired such panic in the town that Gentius at once sent to the praetor two spokesmen, Teuticus and Bellus, leading men of that nation, to beg a truce so that the king might take council about the ..."
^Before the State: Systemic Political Change in the West from the Greeks to the French Revolution Before the State: Systemic Political Change in the West from the Greeks to the French Revolution by Andreas Osiander, 2008, ISBN 0-19-829451-4, page 259, "... a Latin adjectival suffix like -icus. This yields the word teuticus, which around the turn of the millennium is indeed attested ..."