tu ‧ te ‧ lage /ˈtjuːtəlɪdʒ, ˈtjuːtɪlɪdʒ $ ˈtuː-/ BrE AmE noun [uncountable] formal
[ Date: 1600-1700 ; Language: Latin ; Origin: tutela 'protection, guarding' , from tutus , past participle of tueri 'to look at, guard' ]
1 . when you are taught or looked after by someone
under sb’s tutelage
You can attend embroidery classes under the tutelage of Jocelyn James.
2 . responsibility for someone’s education, actions, or property:
parental tutelage