From WordNet (r) 2.0 (August 2003) [wn]:
somehow
adv 1: in some unspecified way or manner; or by some unspecified
means; "they managed somehow"; "he expected somehow to
discover a woman who would love him"; "he tried to
make is someway acceptable" [syn: someway,
someways, in some way, in some manner]
2: for some unspecified reason; "It doesn't seem fair somehow";
"he had me dead to rights but somehow I got away with it";
"for some reason they didn't seem to match" [syn: {for
some reason}]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Somehow \Some"how`\ (s[u^]m"hou`), adv.
In one way or another; in some way not yet known or
designated; by some means; as, the thing must be done
somehow; he lives somehow.
[1913 Webster]
By their action upon one another they may be swelled
somehow, so as to shorten the length. --Cheyne.
[1913 Webster]
Note: The indefiniteness of somehow is emphasized by the
addition of or other.
[1913 Webster]
Although youngest of the familly, he has somehow
or other got the entire management of all the
others. --Sir W.
Scott.
[1913 Webster] Somersault