-thymia

1.
a combining form used in the formation of compound words that denote mental disorders, as specified by the initial element:
alexithymia; cyclothymia; dysthymia.
Origin
< Greek, equivalent to thȳm(ós) soul, spirit, mind + -ia -ia
British Dictionary definitions for -thymia

-thymia

combining form
1.
indicating a certain emotional condition, mood, or state of mind: cyclothymia
Word Origin
New Latin, from Greek thumos temper
-thymia in Medicine

-thymia suff.
State or condition of mind: dysthymia.