The Collaborative International Dictionary
Parergy
Parergy \Par"er*gy\, n. [L. parergon, Gr. ?; para` beside + ?
work.]
Something unimportant, incidental, or superfluous. [Obs.]
--Sir T. Browne.
Wiktionary
parergy
n. (context obsolete English) Something unimportant, incidental, or superfluous.