To crack, break into fine fissures, or cause to craze (a network of small cracks).
From a- (to) + craze, from Middle English crasen (to break). The prefix a- intensifies the action of crazing into fine lines.
Pottery makers use this term when they see that spider-web pattern of tiny cracks on a glaze—it's what happens when ceramics cool unevenly and stress the surface!
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