Douglas Harper's Etymology Dictionary
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.
Wikipedia
Glagolitic is a Unicode block containing the characters invented by Saint Cyril for translating scripture into Slavonic. The Glagolitic script is the precursor of Cyrillic.
Usage examples of "glagolitic".
Pupils of the brothers Cyril and Methodius of Salonika brought to Croatia church rites in the Slav language and especially the Slav script which, in the Croatian lands, later developed into the Glagolitic script.
Split at which it was decided to prohibit the Slav language in liturgy and the Glagolitic script, and to support only the Latin language and script.
In future centuries Glagolitic literacy and literature became important in Croatian cultural life.
The first inscriptions in the Glagolitic script and the Croatian language were carved in the late eleventh century.
Although Glagolitic is a formal script reserved chiefly for religious writing and unsuitable for widespread use, these monuments are nevertheless the beginning of vernacular literacy and literature among the Croats.
Slavonic language be caught in the original Glagolitic, rounded letters.
Balkan expanses to the capital of the world like a small animal in a cage of Glagolitic letters.