upbringing vs fosterage

upbringing and fosterage both are nouns.

Word	Noun	Adjective	Verb	Adverb
upbringing	Yes	No	No	No
fosterage	Yes	No	No	No

As nouns, upbringing and fosterage are synonyms defined as:

upbringing and fosterage: helping someone grow up to be an accepted member of the community

Other synonyms of upbringing include breeding, bringing up, fostering, nurture, raising, rearing.

upbringing (noun)	fosterage (noun)
helping someone grow up to be an accepted member of the community	helping someone grow up to be an accepted member of the community
properties acquired during a person's formative years	encouragement; aiding the development of something