end on vs endwise

end on and endwise both are adverbs.

Word	Noun	Adjective	Verb	Adverb
end on	No	No	No	Yes
endwise	No	No	No	Yes

As adverbs, end on and endwise are synonyms defined as:

Other synonyms of end on include endways.

end on (adverb)	endwise (adverb)
with the end forward or toward the observer	with the end forward or toward the observer
	in or toward the direction of the ends; lengthwise
	on end or upright