noting or pertaining to a script derived from Greek uncials and traditionally supposed to have been invented by St. Cyril, first used for the writing of Old Church Slavonic and adopted with minor modifications for the writing of Russian, Bulgarian, Serbian, and some non-Slavic languages of Central Asia.
of or relating to St. Cyril.
1835-45; < New LatinCyrillicus, equivalent to Cyrill(us) Saint Cyril + -icus-ic
1842, in reference to the Slavic alphabet, from St. Cyril, 9c. apostle of the Slavs, who supposedly invented it. The alphabet replaced earlier Glagolitic. The name Cyril is Late Latin Cyrillus, from Greek Kyrillos, literally "lordly, masterful," related to kyrios "lord, master" (see church).