Greek word
prōtostátēs
πρωτοστάτης
What it means
one standing first in the ranks, i.e. a captain
one standing first in the ranks, i.e. a captain (champion)
Where it comes from
from prōtos (πρῶτος) and hístēmi (ἵστημι)
How the King James translates it
Every place it appears 1
Acts24:5