This is the 4644th most frequent Portuguese word.
derreteu
"Melted."
The word 'derreteu' describes the action of melting that happened to the ice due to exposure to heat.
O gelo derreteu rapidamente sob o sol quente.
The ice melted quickly under the hot sun.
In this case, 'derreteu' is used metaphorically to describe a strong emotional reaction.
Ela derreteu ao ouvir as palavras emocionantes do discurso.
She melted upon hearing the moving words of the speech.
Here, 'derreteu' again refers to the physical process of melting, specifically chocolate altering its solid state due to heat exposure.