Ben Creisler
Of course, the "o" ending in Latin could also be used to create an "insult" name as a noun, often based on nouns: naso "big nose" from nasus "nose"; gulo "glutton" from gulla "gullet, throat"; capito "big head" from caput (capitis) "head"; plus many others.
Note the generic names Naso, Gulo, Capitosaurus, etc.
See also:
https://books.google.com/books?id=u_EIAAAAQAAJ&printsec=frontcover#v=onepage&q=Capito&f=false
But sometimes verbs were the source:
edo (verb) Â"I eat, I consume, I devour"
edo (noun) "a glutton"
Thus the amphibian name Edops "glutton-face" for its huge mouth.
Maybe somebody thought mordeo as "biter" would be an "insult" name like edo.Â