tranquillize
US /ˈtræŋ.kwɪ.laɪz/
UK /ˈtræŋ.kwɪ.laɪz/

1.
tranquilizar, sedar
make (someone or something) calm and quiet by administering a tranquilizer
:
•
The vet had to tranquillize the agitated dog.
El veterinario tuvo que tranquilizar al perro agitado.
•
They used a dart to tranquillize the wild animal.
Usaron un dardo para tranquilizar al animal salvaje.