Secundus
Easton's Bible Dictionary (1897)
Second, a Christian of Thessalonica who accompanied Paul into Asia (Acts 20:4).
Smith's Bible Dictionary (1863)
(fortunate), a Thessalonian Christian. (Acts 20:4) (A.D. 55.) Seer, [Prophet]
Hitchcock's Bible Names Dictionary (1869)
second
Public domain dictionaries.