pen·knife 
(pĕnnīf′)
(pĕnnīf′)n.
A small pocketknife.
[So called because it was originally used for cutting quill pens.]
- presenteeism
- presenter
- presentient
- presentiment
- presentimental
- presently
- presentment
- presentness
- present participle
- present perfect
- present tense
- preservability
- preservable
- preservation
- preservationism
- preservationist
- preservative
- preserve
- preserver
- preset
- presettable
- preshrunk
- pre-shrunk
- preside
- presidency