Glagolitic (n.) Look up Glagolitic at Dictionary.com
1861, from Serbo-Croatian glagolica "Glagolitic alphabet," from Old Church Slavonic glagolu "word," from PIE *gal-gal-, reduplicated form of root *gal- (2) "to call, shout" (see call (v.)) + Greek suffix -itic. The older of the two Slavic writing systems (Cyrillic is the other), it was designed by Cyrillus c.863 C.E.