Cedilla
Pronunciation : Ce*dil"la
Part of Speech : n.
Etymology : [Sp. cedilla, cf. F. c?dille; dim. of zeta, the Gr. name of the letter z, because this letter was formerly written after the c, to give it the sound of s.]
Definition : Defn: A mark placed under the letter c [thus, ?], to show that it is to be sounded like s, as in fa?ade.
Source : Webster's Unabridged Dictionary, 1913