An utter coward.
A thorough coward; craven.
Origin of poltroon
- French poltron from Old Italian poltrone coward, idler perhaps augmentative of poltro unbroken colt (from Vulgar Latin pulliter) (from Latin pullus young animal pau-1 in Indo-European roots) or from poltro bed, lazy
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle French poltron, from Italian poltrone