Strong’s Greek
G4580 — Sekoundos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
∑εκοῦνδος
Sekoundos — pronounced sek-oon'-dos
of Latin origin; "second"; Secundus, a Christian:--Secundus.
1 occurrence in the KJV.
Acts 20:4
And there accompanied him into Asia Sopater of Berea; and of the Thessalonians, Aristarchus and Secundus; and Gaius of Derbe, and Timotheus; and of Asia, Tychicus and Trophimus.