Squinch
WordNet
noun
(1) A small arch built across the interior angle of two walls (usually to support a spire)
verb
(2) Cross one's eyes as if in strabismus
"The children squinted so as to scare each other"
(3) Draw back, as with fear or pain
"She flinched when they showed the slaughtering of the calf"
(4) Crouch down