What is the meaning of Blench?
To shrink; start back; give way; flinch; turn aside or fly off.
To quail.
To deceive; cheat.
To draw back from; shrink; avoid; elude; deny, as from fear.
To hinder; obstruct; disconcert; foil.
To fly off; to turn aside.
A deceit; a trick.
A sidelong glance.
To blanch.
A deceit; a trick.
Source: wiktionary.org