east by south

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The direction or point on the mariner's compass halfway between due east and east-southeast, or 101°15′ east of due north.
• adverb & adjective Toward or from east by south.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The compass point halfway between east and east-southeast, specifically 101.125°, abbreviated as EbS.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the compass point that is one point south of due east