humouring vs humoring

humouring and humoring both are nouns.

Word	Noun	Adjective	Verb	Adverb
humouring	Yes	No	No	No
humoring	Yes	No	No	No

As nouns, humouring and humoring are synonyms defined as:

Other synonyms of humouring include indulgence, indulging, pampering.

humouring (noun)	humoring (noun)
the act of indulging or gratifying a desire	the act of indulging or gratifying a desire