* δεδοκέναι (dedokenai) - This is the perfect active infinitive of the verb "δίδωμι" (didomi), which means "to give."
* πρὶν (prin) - This means "before."
The combination of these words doesn't make sense in Greek grammar.
Possible interpretations:
It's possible that the intended phrase was something like:
* δεδοκέναι πρὶν (dedokenai prin) - "to have given before," which could be used to say something like "They had given it before..."
* δεδοκέναι πρὸς τὶν (dedokenai pros tin) - "to have given to someone/something before"
Important:
Without more context, it's impossible to determine the intended meaning of the phrase "dedokamen pristin." If you can provide more information about where you encountered this phrase, it might be possible to understand its intended meaning.