ETYMOLOGY
from Latin cruentus (bloody) + -ous
EXAMPLE
“…Thus a cruell and most cruentous civill war began which lasted neer upon foure yeers without intermission, wherin there happen’d more battailes, sieges and skirmishes, then passed in the Netherlands in fourescore yeers, and herein the Englishmen may be said to get som credit abroad in the world, that they have the same blood running in their veines (though not the same braines in their sculls) which their Ancestors had, who were observed to be the activest peeple in the field, impatient of delay, and most desirous of battaile then any Nation…”
From: A Venice Looking-Glasse
By J.B.C., 1648
Lexicophilia 