Secundus

Boyd’s Bible Dictionary:

(second). A Thessalonian friend of Paul (Acts 20:4).

Concise Bible Dictionary:

A believer of Thessalonica, and for a time a companion of Paul (Acts 20:4).

Strong’s Dictionary of Greek Words:

Greek:
Σεκοῦνδος
Transliteration:
Sekoundos
Phonic:
sek-oon’-dos
Meaning:
of Latin origin; "second"; Secundus, a Christian
KJV Usage:
Secundus

Jackson’s Dictionary of Scripture Proper Names:

second

Potts’ Bible Proper Names:

The second; favorable:―a Thessalonian friend of Paul, Acts 20:4. {Secundus}