Filed from 2 published puzzles

AMIDE

Set to 2 different clues across 2 published puzzles, most often “Sodium ___” — The New York Times, Sunday, 26 June 2011.

5 letters

Every clue on record, most used first

  • Sodium ___once

    The New York Times — Sunday, 26 June 2011

  • Potassium ___once

    The New York Times — Sunday, 30 October 2005