longwise vs longitudinally

longwise and longitudinally both are adverbs.

Word	Noun	Adjective	Verb	Adverb
longwise	No	No	No	Yes
longitudinally	No	No	No	Yes

As adverbs, longwise and longitudinally are synonyms defined as:

Other synonyms of longwise include lengthways, lengthwise, longways.

longwise (adverb)	longitudinally (adverb)
in the direction of the length	with respect to longitude
	in the direction of the length
	across time