Religion Lite --

the best explanation I could find for Justice Breyer's spelling "Deity" as "Diety" in his Van Orden v. Texas opinion (which, as you may recall, argued for upholding one Ten Commandments display on the grounds that, in context, it was less intensely religious than the one Justice Breyer voted to strike down).

See here for Juan Non-Volokh's original catch of the typo.