Greek word
synagōnízomai
συναγωνίζομαι
What it means
to struggle in company with, i.e. to be a partner
to struggle in company with, i.e. (figuratively) to be a partner (assistant)
Where it comes from
from sýn (σύν) and agōnízomai (ἀγωνίζομαι)
How the King James translates it
Every place it appears 1
Romans15:30