-itic
Concise Oxford English Dictionary © 2008 Oxford University Press:
-itic/ɪtɪk/
▶suffix forming adjectives and nouns corresponding to nouns ending in -ite (such as Semitic corresponding to Semite).
■ corresponding to nouns ending in -itis (such as arthritic corresponding to arthritis).
■ from other bases: syphilitic.
– origin from Fr. -itique, via L. -iticus from Gk -itikos.
'-itic' also found in these Oxford entries:

