Opinatōres
Officers under the Roman emperors who were sent to demand arrears of the
annona militaris. The regular collector was termed
exactor; the
opinator was an extraordinary official sent to coerce overdue supplies, and was for the army
what the
compulsor was for other tribute. The name is probably derived
from
opinari, in the sense of
aestimare, because
they assessed what the due amounted to (Cod. 12, tit. 38, s. 11).