north vs northeasterly

north is a noun but northeasterly is not a noun.

Word	Noun	Adjective	Verb	Adverb
north	Yes	Yes	No	Yes
northeasterly	No	Yes	No	No

north (noun)	northeasterly (noun)
a location in the northern part of a country, region, or city
the cardinal compass point that is at 0 or 360 degrees
the direction in which a compass needle points
the direction corresponding to the northward cardinal compass point

north (adjective)	northeasterly (adjective)
situated in or facing or moving toward or coming from the north	situated in or oriented toward the northeast
	coming from the northeast

north (adverb)	northeasterly (adverb)
in a northern direction