Etymology: Middle English som, adjective & pronoun, from Old English sum; akin to Old High German sum some, Greek hamē somehow, homos same — more at same
Date: before 12th century
1. being an unknown, undetermined, or unspecified unit or thing <some person knocked> 2. a. being one, a part, or an unspecified number of something (as a class or group) named or implied <some gems are hard> b. being of an unspecified amount or number <give me some water> <have some apples> 3. remarkable, striking <that was some party> 4. being at least one — used to indicate that a logical proposition is asserted only of a subclass or certain members of the class denoted by the term which it modifies II. pronoun, singular or plural in construction Date: before 12th century 1. one indeterminate quantity, portion, or number as distinguished from the rest 2. an indefinite additional amount <ran a mile and then some> III. adverb Date: before 12th century 1. about <some 80 houses> <twenty-some people> 2. a. in some degree ; somewhat <felt some better> b. to some degree or extent ; a little <the cut bled some> <I need to work on it some more> c. — used as a mild intensive <that's going some> Usage: When some is used to modify a number, it is almost always a round number <a community of some 150,000 inhabitants> but because some is slightly more emphatic than about or approximately it is occasionally used with a more exact number in an intensive function <an expert parachutist, he has some 115 jumps to his credit — Current Biography>. When some is used without a number, most commentators feel that somewhat is to be preferred. Their advice is an oversimplification, however; only when some modifies an adjective, usually a comparative, will somewhat always substitute smoothly. When some modifies a verb or adverb, and especially when it follows a verb, substitution of somewhat may prove awkward <Italy forced me to grow up some — E. W. Brooke> <I'm not a prude; I've been around some in my day — Roy Rogers> <here in Newport, both Southern Cross and Courageous practiced some more — W. N. Wallace>.
New Collegiate Dictionary. 2001.