Latin greeting (3)
I believe the answer is:
ave
'latin greeting' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ave that I've seen before include "Hail (Latin)" , "Hail in old Rome" , "Hail in graveyard." , "Hail as to Caesar" , "Hail as to Maria" .)