This is the 15172nd most frequent German word.
tauge
"Tauge" is a verb form of "taugen," meaning "to be suitable" or "to be of use."
Here, 'tauge' expresses suitability or adequacy.
Ich tauge nicht dazu, früh aufzustehen.
I am not suitable for getting up early.
In this case, 'tauge' questions one's competence or applicability.
Was tauge ich für diese Aufgabe?
What am I good for in this task?
Here, 'tauge' is used to indicate functionality or usefulness.