A.T. Robertson Commentary Romans 16:12

"Salute Tryphaena and Tryphosa, who labor in the Lord. Salute Persis the beloved, who labored much in the Lord." — Romans 16:12 (ASV)

Tryphaena and Tryphosa (Τρυφαιναν κα Τρυφωσαν). Probably sisters and possibly twins. Both names come from the same root, the verb τρυφαω, to live luxuriously (James 5:5). Denney suggests "Dainty and Disdain."

Persis (Περσιδα). A freedwoman was so named. She is not Paul's "beloved," but the "beloved" of the whole church.