/ ɪnˈvɪgəreɪt; NAmE / verb [ vn ]
1.
[ often passive ] to make sb feel healthy and full of energy :
The cold water invigorated him.
They felt refreshed and invigorated after the walk.
2.
to make a situation, an organization, etc. efficient and successful :
They are looking into ways of invigorating the department.
► in·vig·or·at·ing adjective :
an invigorating walk / shower
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WORD ORIGIN
mid 17th cent.: from medieval Latin invigorat- made strong, from the verb invigorare , from in- towards + Latin vigorare make strong (from vigor vigour).