OTA
Set to 3 different clues across 4 published puzzles, most often “Hiroshima's river” — The New York Times, Saturday, 11 June 2005.
3 letters
Every clue on record, most used first
- Hiroshima's river2 times
The New York Times — Saturday, 11 June 2005
- Taxonomic suffixonce
The New York Times — Saturday, 22 June 2002
- Suffix in taxonomyonce
The New York Times — Thursday, 16 May 1996