-esis
noun suffix
-e·sis
ˈēsə̇s,
əsə̇s
plural -eses
ˈē(ˌ)sēz,
əˌsēz
: action : process
enuresis
Word History
Etymology
Middle English, from Old English, from Latin, from Greek -esis, -ēsis, from -e-, -ē-, derivational element attached to certain verbs + -sis, feminine suffix of action