The word "daunters" uses 8 letters: A D E N R S T U.
Words formed by adding one letter before or after daunters (in bold), or to adenrstu in any order:
b - breadnuts c - transduce underacts d - transuded e - denatures sauntered undereats h - unthreads i - indurates s - transudes
All words formed from daunters by changing one letter