QUILL, n. An implement of torture yielded by a goose and commonly
wielded by an ass. This use of the quill is now obsolete, but its
modern equivalent, the steel pen, is wielded by the same everlasting
Presence.
-- Ambrose Bierce, "The Devil's Dictionary"
OBSOLETE, adj. No longer used by the timid. Said chiefly of words.
A word which some lexicographer has marked obsolete is ever thereafter
an object of dread and loathing to the fool writer, but if it is a
good word and has no exact modern equivalent equally good, it is good
enough for the good writer....