Strong's G4898 — συνέκδημος (noun)
sunekdemos (soon-ek'-day-mos) n.
1. a co-absentee from home, i.e. fellow-traveller
[from G4862 and the base of G1553]
KJV: companion in travel, travel with 
Root(s): G4862, G1553 
Hebrew root: ἐκδημέω
Occurrences: 2