off·shoot 
/ˈɑ:fˌʃu:t/ noun
plural off·shoots /ˈɑ:fˌʃu:t/ noun [count] 1 : something (such as a business) that develops from something larger
▪ The business started as an offshoot of an established fashion design company. 2 : a branch that grows on one of the main stems of a plant
▪ The business started as an offshoot of an established fashion design company.
