Definition of onychomancy in US English:

onychomancy

noun

rare
  • Divination from the fingernails.

Origin

Mid 17th century; earliest use found in John Gaule (1603/4–1687), Church of England clergyman and author. Either from post-classical Latin onychomantia or from its elements ancient Greek ὄνυχο- onycho- + Hellenistic Greek -μαντεία -mancy. Compare Spanish onicomancia.

Pronunciation

onychomancy

/ˈɒnɪkə(ʊ)ˌmansi/