disfrazar
/disfɾaˈθaɾ/ · B1 · verb
to dress up as
🥸🎭 dis- + faz (old Spanish for face) = to un-face yourself
Faz is an old word for face, as in the English word face itself. To disfrazar is to take your real face away and wear another one. The noun disfraz means costume, which is what you wear at Carnaval.