This is the 4633rd most frequent German word.
trauern
To grieve or mourn.
The word 'trauern' is used to express mourning or grief emotionally towards someone's passing.
Wir trauern um unseren verstorbenen Freund.
We mourn our deceased friend.
Here, 'trauern' is applied to express an emotional response to personal loss.
Sie wird lange um ihren Verlust trauern.
She will mourn her loss for a long time.
In this sentence, 'trauern' is incorporated to represent the process of coping with grief as a necessary act.