in ‧ stil BrE AmE British English , instill American English /ɪnˈstɪl/ verb ( past tense and past participle instilled , present participle instilling ) [transitive]
[ Date: 1400-1500 ; Language: Latin ; Origin: instillare , from stillare 'to fall in drops' ]
to teach someone to think, behave, or feel in a particular way over a period of time
instil confidence/fear/discipline etc into somebody
A manager’s job is to instil determination into his players.