Idiolect or more widespread?

[William Salmon]

> Subject:      Idiolect or more widespread?
> "not
> based off a book, not based off another movie, and not based off a TV show".
> "Based off" seemed to me to be a peculiar alteration of "based on".

"based off a book" as well as "based off of a book" is fine in my Texas
idiolect.  Raw Google data prefers "based off of a" to "based off a"
almost 3:1.

WS

------------------------------------------------------------
The American Dialect Society - http://www.americandialect.org