COPULA
Set to 2 different clues across 4 published puzzles, most often “Linking verb” — The New York Times, Saturday, 12 December 2009.
6 letters
Every clue on record, most used first
- Linking verb3 times
The New York Times — Saturday, 12 December 2009
- Grammatical connectoronce
The New York Times — Friday, 16 June 1995