spell·er 
(spĕlər)
(spĕlər)n.
1. One who spells words.
2. An elementary textbook containing exercises that teach spelling.
- prepositive
- prepositively
- prepossess
- prepossessing
- prepossessingly
- prepossession
- preposterous
- preposterously
- preposterousness
- prepotency
- prepotent
- prepotently
- preppie
- preppily
- preppiness
- preppy
- preprandial
- preprimary
- preprint
- preprocess
- preprocessor
- preproduction
- preprofessional
- preprogram
- prep school