I have a question
Is it pronounced "addy-dass" or "a-dee-dass"?
( SqueakyG, Wed 2 Dec 2009, 17:58, archived)

Depends on where you're from

( thyrf as in turf, but not, Wed 2 Dec 2009, 18:14, archived)

The former for me
As it's officially a shortened name for Adolf Dassler, or "Adi" Dassler, the founder
(Stephen Sondheim ..-. ..- -.- . -.- -.-- . .- ...., Wed 2 Dec 2009, 23:05, archived)