Kecksy

Origin

Possibly from kex, putatively meaning "something inedible or that causes one to gag," from keck ("to retch")

1833, T. F. Thiselton Dyer, Folk-Lore of Shakespeare, 2004, Facsimile Reprint, page 212 — It has been suggested that kecksies may be a mistaken form of the plural kex ; and that kex may have been formed from keck, something so dry that the eater would keck at it, or be unable to swallow it.

Full definition of kecksy

Noun

1. The hollow stalk of an umbelliferous plant, such as the hemlock.
• circa 1599 William Shakespeare, , Act V, Scene 2, 1833, , , , (editors), The Plays and Poems of William Shakspeare, New Edition, page 436,...Conceives by idleness; and nothing teems,
  But hateful docks, rough thistles, kecksies, burs,
  Losing both beauty and utility.