"writing implement," c.1300, from O.Fr.
penne "quill pen, feather," from L.
penna "feather," from PIE
*petna-, suffixed form of base
*pet- "to rush, fly" (see
petition). From the same base comes suffixed form
*petra-, source of Skt.
patram "wing, feather," Gk.
pteron "wing," O.C.S.
pero "pen," O.N.
fjöðr, O.E.
feðer (see
feather). In later Fr., this word means only "long feather of a bird," while the equivalent of Eng.
plume is used for "writing implement," the senses of the two words thus reversed from what they are in English. The verb is 1490, from the noun.
Pen-pal first recorded 1938, gradually replacing earlier
pen-friend (1933).
Pen-and-ink (adj.) is attested from 1676.