Conversation so far:
What language did they speak?
a non-Indo-European language; the majority consensus is that Etruscan is related only to other members of what is called the Tyrsenian language family.
Are there any other interesting aspects about this article?
No etymology exists for Rasna, the Etruscans' name for themselves, although Italian historic linguist Massimo Pittau has proposed the meaning of 'Shaved' or 'Beardless'.
What is etymology?
CANNOTANSWER.
Why did Pittau think it meant beardless?
backing the opinion of ancient figurines collector and author Paolo Campidori.
Have other languages adopted any of their words?
Tyrrhenian name came from an incursion of Sea Peoples or later migrants, then it might well be related to the name of Troy.
Do they have any unique words?
The phrase is turskum ...

Question: What does it mean?
Self-contained rewrite: What does turskum mean?