The derivative ar-mentum, formed like ju-mentum, would naturally have been applied to any animal fit for ploughing and other labor in the field, whether ox or horse.
"Lectures on The Science of Language"
Max Müller
A receding, as it were, a cut-away chin is particularly repellent, because mentum prominulum is a characteristic belonging exclusively to our species.
"Essays of Schopenhauer"
Arthur Schopenhauer
The mentum carries at its extremity a pair of lobes with sharp fangs.
"The Life-Story of Insects"
Geo. H. Carpenter