Aspirated consonant
Later, during the Koine Greek period, the aspirated and voiceless stops /th d/ of Attic Greek lenited to voiceless and voiced fricatives, yielding /th d/ in Medieval and Modern Greek.
Attic Greek lenited to what?
voiceless and voiced fricatives
Later, during the Koine Greek period, the aspirated and voiceless stops /th d/ of Attic Greek lenited to voiceless and voiced fricatives, yielding /th d/ in Medieval and Modern Greek.
Attic Greek