Brainchild

[Damien Hall]

Heard on Fox News Philadelphia last night (30 January):

'The brainchild [of the Smart car] is the same guy responsible for Swatch
watches.'

This seems like a semantic 'reversal' of a type that I think is common but whose
label I don't know, maybe a bit akin to the transitive-intransitive reversal in
"I notice you have a stain on your shirt" -> "I can't wear this shirt;  the
stain will notice" (= be noticeable).  (A friend of mine says that, and I don't
think she's the only one.)

Anyway, this 'reversed' sense of 'brainchild' to mean 'person who came up with
the idea' isn't in *OED*.  It may be a nonce use - difficult to Google for -
but here it is, FWIW.  I'm sure that the concept of the brain as the origin of
ideas, and the concept of 'child prodigy', come into this somewhere too.

Damien Hall
University of Pennsylvania

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