Sunagonizomai denotes joining another person in an earnest struggle through prayer on that person's behalf.

The attested use describes joining another person in a struggle expressed through prayers on that person's behalf.

1. Joining in prayerful struggle · dominant

   In Romans 15:30, the aorist middle infinitive occurs in an appeal for the brothers to join the speaker in prayers on his behalf to God; the APB renders the clause “to struggle together with me in the prayers on my behalf to God.”

   Romans 15:30

In the Anselm Project Bible: In Romans 15:30, the APB presents the appeal as “to struggle together with me” in prayers on the speaker’s behalf. The verse is read as a whole.