ceniza
/θeˈniθa/ · B1 · noun · f
ash
🔥 Latin cinis = ash, the same root as English incinerate
To incinerate something is to turn it to ceniza. Ash Wednesday is Miércoles de Ceniza in Spanish. Cenicero (ashtray) is from the same word. The noun is feminine: la ceniza, las cenizas.