Filed from 3 published puzzles

IMPETUS

Set to 2 different clues across 3 published puzzles, most often “Momentum” — The New York Times, Saturday, 2 January 2010.

7 letters

Every clue on record, most used first

  • Momentum2 times

    The New York Times — Saturday, 2 January 2010

  • Driving forceonce

    The New York Times — Tuesday, 31 March 2009

Other answers to these clues