ETYMOLOGY
from glidder (to glaze over; to cover with ice) + -y
EXAMPLE
“… Two men led my mother down a steep and gliddery stair-way, like the ladder of a hay-mow; and thence, from the break of the falling water, as far as the house of the captain. And there at the door, they left her trembling, strung as she was, to speak her mind. …”
From: Lorna Doone: a Romance of Exmoor
By Richard Doddridge Blackmore, 1869
Lexicophilia 