Green’s Dictionary of Slang

derrey n.

[? play on SE derry down, one ‘looks down’]

(UK/US Und.) an eyeglass.

1859
18601870188018901900
a.1904
[US]Matsell Vocabulum.
[UK]Barrère & Leland Dict. of Sl., Jargon and Cant.
[UK]Farmer & Henley Sl. and Its Analogues.