Definition of "somewhence"

... so that the said plain looked even as a wide green highway leading ... somewhence to somewhither.

1897, William Morris, “Chapter IV. Of the Slaying of Friend and Foe”, in The Water of the Wondrous Isles‎ (Fantasy), Project Gutenberg, published 2005, page 157

For all beautiful things, no matter how fanciful, are somehow, somewhen, somewhence, true; and all true things, no matter how repellent, are somehow, somewhen, somewhence, beautiful.

1910, “Volume 50”, in Good Housekeeping Magazine‎, Indiana University, published 2008, page 157

The stirring of the wind was pleasantly ominous to Reilly: it was quickening, encouraging, hostile to inertia; it came somewhence and was going somewhither.

1922, Katherine (Fullerton) Gerould, Lost Valley, a Novel‎, Harper, Pennsylvania State University, published 2010, page 437