Plato's tongue (5)
I believe the answer is:
greek
(Other definitions for greek that I've seen before include "Supposedly unknown language?" , "A native of Athens" , "Athenian?" , "Classical language" , "One from Salonika" .)
I believe the answer is:
greek
(Other definitions for greek that I've seen before include "Supposedly unknown language?" , "A native of Athens" , "Athenian?" , "Classical language" , "One from Salonika" .)