This is the 3934th most frequent German word.
treffern
"Treffern" is not a standalone German word; it might be a misspelling of "treffen," which means "to meet" or "to hit (a target)."
Here, 'treffen' is used to mean 'to hit,' referring to aiming and succeeding in striking a target.
Es gelang ihm, ins Schwarze zu treffen.
He succeeded in hitting the bullseye.
In this sentence, 'treffen' implies 'to meet,' referring to arranging and realizing a gathering with someone.
Wir treffen uns morgen am Park.
We will meet at the park tomorrow.
Here, 'treffen' is utilized metaphorically to mean 'to appeal,' suggesting a successful match with preferences or expectations.