How do you pronounce it?

[Rockies Fan in Diapers]

I pronounce it with the silent A here.

[Little BabyDoll Christine]

1 hour ago, Alvin Seville said:

Thanks for the info: although no offence I must admit I'm a little confused as to what this has to do with acknowledging Wet Knights (possibly accidental) pun on peeing in a diaper.

It is the etymology of the world

[Angela Bauer]

My Granny, who is in her late 90's, always pronounces it di-a-per. My Mom was born in 1938. She grew up pronouncing it di-a-per, but noticed that about the time I was born in 1964 here in Southern California more often it is pronounced with the silent A so that is how she normally pronounces it. I have always used the silent A pronunciation. My husband Don was born in New York City in 1932. When I met him in 1991 he only said di-a-per. Today at brunch I noticed that Don only said die-per. Go figure. Tastes change with generations.

[Wet Knight]

2 hours ago, Alvin Seville said:

Thanks for the info: although no offence I must admit I'm a little confused as to what this has to do with acknowledging Wet Knights (possibly accidental) pun on peeing in a diaper.

Two pees in our naPPy, as opposed to only one pee in their diPur,  is just as deliberate a pun as wet night.

[Little BabyDoll Christine]

It is like a joke I heard 61 years ago

Spell "dry dipaer"
"D R Y  D I A P E R"
" There's no'p' in a DRY dipaer"

[rusty pins]

2 pees?  I have so many pees in my diaper you could literally eat them with a knife!

[Kapelmeister]

We always say Die-per and leave the "a" silent.  Then again, I'm from the Boston area and the "r" is often silent.  Cah instead of car, yahd instead of yard etc.   I've heard people put the "r" where it doesn't belong for example Pizzer instead of pizza. Personally since learning to speak grootish I just say "I am Groot" and that settles everything.

[dlnoir]

"Luier", but that probably doesn’t qualify now does it?   but when I speak English it is usually di-a-per with a soft –a.

[PamperedinthePoconos]

I'm with the silent "a":  dye-per

[Stroller]

Geek report:

Just checking my OED again, & it looks like historically the "a" wasn't silent in the UK.  The preface to my edition was written in 1933, although compiling the dictionary took decades.  Looks like the word came from ancient Greek and/or Latin. 

[Nyte Kitsune]

ok, I'll chime in. I also just call it a die-per, I tried it pronouncing it with the "a" die-a-per, and it just sounds weird, on the other hand, referring it to a nappy would also work I suppose, though I'm not from the UK, however I prefer to use local terms and slang when speaking to those from those regions to avoid confusion.

[Stroller]

No criticism implied - pronunciation always changes over time and distance and culture.  And so it should.  Anyway, we don't use the word over here much anyway ?

[LilLew]

The only time I've ever heard someone say "die-a-per" is when Homestar Runner said it in one of the sbemails. Don't remember which one.