This is the 13846th most frequent German word.
erwärmen
To warm up or heat.
Here, 'erwärmen' is used in the context of heating food or a consumable item.
Ich erwärme die Suppe für das Mittagessen.
I warm up the soup for lunch.
In this sentence, 'erwärmen' metaphorically refers to inducing a feeling of warmth or joy.
Das Gespräch erwärmte mein Herz mit Freude.
The conversation warmed my heart with joy.
Here, 'erwärmen' is used literally to describe the action of rising temperature due to sunlight.