From The Collaborative International Dictionary of English v.0.48 :
Brickle \Bric"kle\, a. [OE. brekil, brokel, bruchel, fr. AS.
brecan, E. break. Cf. Brittle.]
Brittle; easily broken. [Obs. or Prov.] --Spenser.
[1913 Webster]
As stubborn steel excels the brickle glass.
--Turbervile.
[1913 Webster]
From WordNet (r) 3.0 (2006) :
brickle
adj 1: having little elasticity; hence easily cracked or
fractured or snapped; "brittle bones"; "glass is
brittle"; "`brickle' and `brickly' are dialectal" [syn:
brittle, brickle, brickly]