The Greek proper name Euodia (Εὐοδία) means prosperous journey, sweet fragrance, success. It appears once in the NT — Philippians 4:2 — where Paul urges Euodia and Syntyche to agree in the Lord. The name derives from eu (well, good) and hodos (way, road).
Paul's appeal to Euodia and Syntyche in Philippians 4:2–3 is notably personal for a letter read publicly. These two women had 'labored side by side' with Paul in the gospel — language indicating active co-workers in ministry, not passive members. Their disagreement was significant enough to threaten the unity of the Philippian church, prompting Paul to address it directly. The appeal to a 'true companion' (possibly Epaphroditus or Luke) to help them reconcile shows Paul's pastoral wisdom: he does not take sides but calls both women to the same standard — 'agree in the Lord.'