glagolitic

As a letter s

is the letter s with a.

As an adjective glagolitic is

of or written with the glagolitic alphabet.

As a noun glagolitic is

(linguistics) the oldest known slavonic alphabet, designed around 862–863 by saint cyril in order to translate the bible and other texts into old church slavonic mostly replaced by cyrillic alphabet in orthodox christian slavic countries, but still in use in the croatian church along the dalmatian coast, in czech and croatian recensions of church slavic.

As an adjective glagolitic

is of or written with the glagolitic alphabet.

As a noun glagolitic

is (linguistics) the oldest known slavonic alphabet, designed around 862–863 by saint cyril in order to translate the bible and other texts into old church slavonic mostly replaced by cyrillic alphabet in orthodox christian slavic countries, but still in use in the croatian church along the dalmatian coast, in czech and croatian recensions of church slavic.

As a proper noun yat is

a unique collection of dialects of english spoken in new orleans, louisiana.