chalk up to

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chalk (something) up to (third-person singular simple present chalks up to, present participle chalking up to, simple past and past participle chalked up to)

1. (transitive, idiomatic) To attribute or account for something; to ascribe.

   Chalk it up to fear that he didn't finish.

   • 2013 August 28, Derek Thompson, “How Goliaths Beat Themselves: Microsoft's Mobile Failure and the Innovator's Dilemma”, in The Atlantic‎:

     Some of the best pre-mortems for Steve Ballmer, out-going CEO of Microsoft, have chalked up the company's problem to the "innovator's dilemma."

• put down to