Kenneth G. Wilson (1923). The Columbia Guide to Standard American English. 1993.
someway, someways (advs.)
Like somewheres, nowheres, anyways, and a number of similarly compounded adverbs that occur both with and without a final -s, someways is Substandard, even in the regional dialects where it usually occurs: Someways, Id like to help him. Someway, Id like to help him is Standard in speech, but it isnt often found in print; Id like to help him in some way [or somehow] would be more appropriate.