Libertine

Boyd’s Bible Dictionary:

(free). Emancipated Jewish slaves; freedman (Acts 6:9).

Concise Bible Dictionary:

These are supposed to have been Jews who after having been captured by the Romans had been set at liberty: hence their name. It is well known that there were such. They formed a party at Jerusalem, and were among those who persecuted Stephen (Acts 6:9).

Strong’s Dictionary of Greek Words:

Number:
3032 (find all occurrences in KJV Bible)
Greek:
Λιβερτῖνος
Transliteration:
Libertinos
Phonic:
lib-er-tee’-nos
Meaning:
of Latin origin; a Roman freedman
KJV Usage:
Libertine

Jackson’s Dictionary of Scripture Proper Names:

freedmen

Potts’ Bible Proper Names:

Free ones; freedmen:―emancipated Jewish slaves; a sect, Acts 6:9. {Libertini}