good-neighbourliness vs good-neighborliness

good-neighbourliness and good-neighborliness both are nouns.

Word	Noun	Adjective	Verb	Adverb
good-neighbourliness	Yes	No	No	No
good-neighborliness	Yes	No	No	No

As nouns, good-neighbourliness and good-neighborliness are synonyms defined as:

good-neighbourliness and good-neighborliness: a disposition to be friendly and helpful to neighbors

Other synonyms of good-neighbourliness include neighborliness, neighbourliness.

good-neighbourliness (noun)	good-neighborliness (noun)
a disposition to be friendly and helpful to neighbors	a disposition to be friendly and helpful to neighbors