We have a solid understanding of what the Romans called the letters of the alphabet, and the names of the Greek letters (alpha, beta, gamma…) are well-known.
However, there seems to be a step missing here. The Greek names are clearly adaptations of the Phoenician ('ālep, bēt, gīml…), while the Latin names clearly aren't.
What happened in the middle here? Historically, Greek colonists brought the alphabet to Italy where it was picked up by the Etruscans, who eventually introduced it to Rome.
So my question is: do we know whether the Etruscans called their letters by Greek-style names, or Latin-style ones?