Definify.com
Webster 1913 Edition
Willer
Will′er
,Noun.
 One who wills. 
Webster 1828 Edition
Willer
WILLER
,Noun.
 Definition 2025
willer
willer
English
Noun
willer (plural willers)
- One who wills, who causes by an act of will or willpower.
 - One who causes an inheritance by writing a will.