> 1599 R. Percyvall & J. Minsheu Spanish Gram. 6 Marked with a dash vnder it thus, ç, called ç Cerilla, or ç Cedilla, is proper to the Arabique tongue, from whence it was first taken.
1753 Chambers's Cycl. Suppl. Cedilla..denotes a sort of small c, to the bottom of which is affixed a kind of virgula, as ç... The cedilla is called by some of our printers a ceceril.
1878 Kitchin tr. Brachet Fr. Dict. (at cited word) The cedilla was a z, placed first by the side of, afterwards underneath the letter affected.