AETAT
Set to 2 different clues across 2 published puzzles, most often “Old tombstone abbr. meaning "at the age of"” — The New York Times, Saturday, 28 March 2009.
5 letters
Every clue on record, most used first
- Old tombstone abbr. meaning "at the age of"once
The New York Times — Saturday, 28 March 2009
- At the age of: Lat., abbr.once
The New York Times — Friday, 30 December 1994