Filed from 2 published puzzles

FORMULA

Set to 2 different clues across 2 published puzzles, most often “H2O, e.g.” — The New York Times, Saturday, 9 January 2010.

7 letters

Every clue on record, most used first

  • H2O, e.g.once

    The New York Times — Saturday, 9 January 2010

  • Fixed methodonce

    The New York Times — Saturday, 14 June 2003