inject
/ɪnˈdʒekt/·인젝트·verb
to force a liquid into
LatinCEFR B1
Root
in- (into) + Latin 'jacere' (to throw)
Latin injicere (throw into) → Latin injectus → English inject
In a word
in- (into) + ject (throw) = 'throw into'. A doctor throws medicine into the body — that's an injection. Figuratively, you can inject energy into an organisation. Same throw, different target.
Examples
The nurse injected the medicine slowly.
They tried to inject new energy into the team.
Don't inject too much air into the balloon.
Related
projectrejectobjectsubjectinjection