northwest by north

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

• noun The direction or point on the mariner's compass halfway between northwest and north-northwest, or 33°45′ west of due north.
• adverb & adjective Toward or from northwest by north.

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

• noun The compass point halfway between northwest and north-northwest, specifically 326.25°, abbreviated as NWbN.

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

• noun the compass point that is one point north of northwest