My late grandfather had several word-choice peeves for which he would gently interrupt a speaker, especially a grandchild, in order to correct. The one I remember most was his dislike for the use of "hard" as a synonym for "difficult," as in the statement:
This homework is really hard.
I read and hear "hard" used this way all the time and often wonder if there is something incorrect about it. Is there, or has there ever been, any basis for this quibble?
Best Answer
There is nothing incorrect about hard being used that way. It's just more colloquial than difficult, but other than that, they are synonyms, and have been for a long time. The Oxford English Dictionary has citations going back all the way to 1340:
I actually don't have access to the OED — where I'm quoting this from is this excellent Language Log entry. Highly recommended reading.
To that, I think it is worth adding that difficult is only some 600-odd years old. It is a back formation from difficulty, which in turn was borrowed from Old French in the late 14th century. Hard, on the other hand, has been around for much longer and came straight from Old English. So it's actually the more venerable way of saying "difficult".