transitive verb
Definition 1
Foster, tend; manage (plants, estate) with solicitude.
Source: Concise Oxford Dictionary
Context: He [Archie Norman] also built up retailer Kingfisher in the 1980s and nursed the telecoms business Energis back to health before selling it to Cable and Wireless.
Source: Financial Times 21/11/2009 (Salamander Davoudi)