Demetrius

Boyd’s Bible Dictionary:

(belonging to Ceres). (1) A silversmith at Ephesus (Acts 19:24-30). (2) A disciple (3 John 12).

Concise Bible Dictionary:

1. Silversmith of Ephesus, who made silver shrines of the temple. Fearing that the preaching of Paul against idolatry would lessen the gains of himself and others, he raised an uproar (Acts 19:24,38).
2. A convert who was borne witness to by all, and by the truth itself (3 John 1:12).

Strong’s Dictionary of Greek Words:

Greek:
Δημήτριος
Transliteration:
Demetrios
Phonic:
day-may’-tree-os
Meaning:
from Δημήτηρ (Ceres); Demetrius, the name of an Ephesian and of a Christian
KJV Usage:
Demetrius

Jackson’s Dictionary of Scripture Proper Names:

of mother earth

Potts’ Bible Proper Names:

Belonging to Ceres; the mother of the people-’ the goddess of corn:―a silversmith at Ephesus, Acts 19:24. {Cerealis}