Saying the word 'roofs', just sounds so wrong. I don't know anyone who speaks the word that way, everyone says it 'rooves'.
That's just what you're used to, which isn't authoritative
"What's intumescent paint for?"
"It fireproofs the things it's applied to"
I don't think you'd say "fireprooves"
"Gosh, there were a lot of mistakes in that movie.."
"Yeah it was back to back goofs wasn't it? Can't wait for the YouTube content creators to start generating spoofs of that one"
Did your first three cars all have sunroofs?
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Examples of words that are spelled differently to how they are commonly or colloquially pronounced are manifold in the language, though..
How many people do you know refer to a filling between two slices of bread as a "samwidge"?
I'd lay a bet that no one you know will say it "sand-witch"
Similarly I expect you'll hear "Feb-you-airy" dropping the middle R..
"Top the ba-ery up with deionised wa-er" has 2 fewer Ts than it should
Jimmy Nail goes into a bakery;
"Eyar love, that in the windauh, is that a cyeake or a merangue?"
"No Jimmy, yer right, it's a cyeake"
Language evolution is
often interesting..
Another pair of words that commonly drop letters, and if pronounced as written sound odd to most. Try putting the T in often, or the ER and G in interesting to have your mates ask you why you talk posh all of a sudden)
Note too, the F is a hard V in "of" but a soft F in "soft"..
All in, I often think the written language and the spoken language are only coincidentally related .. (just listening to a child asking what alley means - Britain and America are alleys, apparently)