As adjectives the difference between comitial and comital
is that comitial is (in ancient rome) of or pertaining to a comitia while comital is of or pertaining to a count or earl.
comitial
English
Adjective
(
en adjective)
(in Ancient Rome) Of or pertaining to a comitia
(by extension) Of or pertaining to a political assembly
comital
English
Adjective
(
en adjective)
of or pertaining to a count or earl
References
* OED 2nd edition 1989