Castor and Pollux

Concise Bible Dictionary:

The word Διόσκουροι signifies “young men, or sons of Zeus,” their names being Castor and Pollux according to heathen mythology. They were supposed to be the guardians of navigation, and a rude image of them was at times carved on the bows of vessels (Acts 28:1111And after three months we departed in a ship of Alexandria, which had wintered in the isle, whose sign was Castor and Pollux. (Acts 28:11)).

Strong’s Dictionary of Greek Words:

Greek:
Διόσκουροι
Transliteration:
Dioskouroi
Phonic:
dee-os’-koo-roy
Meaning:
from the alternate of 2203 and a form of the base of 2877; sons of Jupiter, i.e. the twins Dioscuri
KJV Usage:
Castor and Pollux

Jackson’s Dictionary of Scripture Proper Names:

Jupiter’s twins

Potts’ Bible Proper Names:

Great power:―Castor and Pollux, the twin sons of Jupiter and Leda [CASTOR], Acts 28:11. {Potestas magna}