summersus

From LSJ

θνῄσκει δὲ πίστις, βλαστάνει δ' ἀπιστίαloyalty dies and disloyalty is born

Source

Latin > English (Lewis & Short)

summersus: (subm-), a, um, Part. of summergo.
summersus: (subm-), ūs, m. summergo,
I a plunging under water, sinking (post-class.), Tert. Anim. 32 med.>