Search Result for "penknife": 
Wordnet 3.0

NOUN (1)

1. a small pocketknife; originally used to cut quill pens; 



The Collaborative International Dictionary of English v.0.48:

Penknife \Pen"knife`\, n.; pl. Penknives. [Pen + knife.]
   A small pocketknife; formerly, a knife used for making and
   mending quill pens.
   [1913 Webster]


WordNet (r) 3.0 (2006):

penknife
    n 1: a small pocketknife; originally used to cut quill pens