you may have replied to me about that by mistake, because I didnt say anything about the use of "о" and "об". But I was thinking about that, so it might not be a mistake at all :) Also, I don't see any other comment about that. Anyway, although it is preferable to say "о" instead of "об" in most cases, there are some words that don't go with "o". Like "об пол". I believe that idioms have this obligatory "об" because spoken language of simple people is the origin of most idioms and proverbs. Then they just become cliche and are used as they are.
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Date: 2014-02-13 07:11 am (UTC)Anyway, although it is preferable to say "о" instead of "об" in most cases, there are some words that don't go with "o". Like "об пол".
I believe that idioms have this obligatory "об" because spoken language of simple people is the origin of most idioms and proverbs. Then they just become cliche and are used as they are.