ASPERA

Set to 2 different clues across 2 published puzzles, most often “Last word of Kansas' motto” — The New York Times, Sunday, 12 December 2010.

6 letters

Every clue on record, most used first

Last word of Kansas' mottoonce
The New York Times — Sunday, 12 December 2010
"Ad Astra per ___" (Kansas' motto)once
The New York Times — Sunday, 4 August 2002