Tychicus

"Chance, an Asiatic Christian, a "faithful minister in the Lord" "(Eph. 6:21, 22), who, with Trophimus, accompanied Paul on a part" of his journey from Macedonia to Jerusalem (Acts 20:4). He is "alluded to also in Col. 4:7, Titus 3:12, and 2 Tim. 4:12 as" "having been with Paul at Rome, whence he sent him to Ephesus," probably for the purpose of building up and encouraging the church there.

Definition of Tychicus:
"casual; by chance"