titivate

/ˈtɪtɪveɪt/
verb
  1. To make small changes to improve the appearance of something; to smarten or spruce up.
    • She spent an hour titivating her hair before the party.
    • The gardener titivated the flower beds by adding fresh mulch.
    • He titivated his old bicycle with new handlebars and a fresh coat of paint.
Antonyms