masso
From LSJ
Sunt verba voces quibus hunc lenire dolorem possis, magnam morbi deponere partem → Words will avail the wretched mind to ease and much abate the dismal black disease.
masso: 1, v. a., = μάσσω>,
I to chew (late Lat.), Theod. Prisc. 1, 8; 2, 29.