D defs.my
Entry 2 senses Webster, 1913

Supernaculum

· Su·per·nac·u·lum · IPA /ˌs(j)uː.pəˈnæ.kjə.ləm/
01 adv. & n. A kind of mock Latin term intended to mean, upon the nail; -- used formerly by topers.
  1. 1.
    A kind of mock Latin term intended to mean, upon the nail; -- used formerly by topers.
    “Drinking super nagulum [supernaculum], a device of drinking, new come out of France, which is, after a man hath turned up the bottom of the cup, to drop it on his nail and make a pearl with that is left; which if it slide, and he can not make it stand on by reason there is too much, he must drink again for his penance.” — Nash.
  2. 2.
    Good liquor, of which not enough is left to wet one's nail.