Some forms of Greek before the Koine Greek period are reconstructed as having aspirated stops. The Classical Attic dialect of Ancient Greek had a three-way distinction in stops like Eastern Armenian: /t t d/. These stops were called , , "thin, thick, middle" by Koine Greek grammarians.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Early Greek (before Koine) have been redone with what?
aspirated stops.