inject
v.v. to use a needle to put a liquid, like medicine, into someone's body. It can also mean to suddenly add a new quality or idea to a situation to make it better.
v. to introduce a liquid into a body or cavity using a needle and syringe; figuratively, to introduce a new element into a situation to produce a desired effect. Transitive — requires a direct object.
The nurse will inject the medicine into your arm.
The government plans to inject millions of dollars into the local economy to create more jobs.
By hiring a younger creative director, the fashion house hoped to inject some much-needed energy and modern perspective into its aging brand identity.
From Latin iniectus, injectus, participle of iniciō, injiciō (“I throw in”), from in- + iaciō (“I throw”).
The verb is transitive and typically takes the preposition 'into' for the destination of the substance or quality.
The doctor injected to him the vaccineThe doctor injected him with the vaccineWhen the person is the object, use 'inject [someone] with [something]'. Alternatively, use 'inject [something] into [someone]'.