Ab·er·rate v. i. To go astray; to diverge. [R.]
Their own defective and aberrating vision. --De Quincey.
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aberrate
v 1: diverge from the expected; "The President aberrated from
being a perfect gentleman"
2: diverge or deviate from the straight path; produce
aberration; "The surfaces of the concave lens may be
proportioned so as to aberrate exactly equal to the convex
lens"