bolt·er 2 
(bōltər)
(bōltər)n.
1. A machine used for sifting, especially for sifting flour.
2. One who operates a sifting machine.
- profanation
- profanatory
- profane
- profanely
- profaner
- profanity
- profess
- professedly
- profession
- professional
- professionalism
- professionalization
- professionalize
- professionally
- professor
- professorate
- professorial
- professorially
- professoriat
- professoriate
- professorship
- proffer
- profferer
- proficiency
- proficient