tranquillises
tran-quil-lis-es
verb
To make a person or animal calm, quiet, or less agitated.
"The vet tranquillises the anxious dog."
Thesaurus
Synonyms: tranquillize, tranquillise, tranquilize, calm down, still, lull, quiet, calm, quieten, sedate
Antonyms: agitate, arouse, brace, charge, charge up, commove, energise, energize, excite, perk up, rouse, stimulate