This is the 6375th most frequent Portuguese word.
des
"Des" is not a standalone word in Portuguese; it is often a prefix meaning "un-" or "dis-", used to indicate negation or reversal.
The prefix 'des-' indicates negation, showing the books are not organized.
Os livros desorganizados estavam espalhados pela sala.
The disorganized books were scattered around the room.
The prefix 'des-' indicates reversal, showing the undoing of the completed work.
Eles desfizeram o trabalho que haviam realizado.
They undid the work they had done.
Here, 'descrever' means describe, where 'des-' is part of the verb's root rather than implying negation.