Definition of onomantic in US English:

onomantic

adjective

  • 1Of or relating to onomancy.

  • 2Onomastic.

Origin

Early 19th century; earliest use found in Noah Webster (1758–1843), lexicographer. From ancient Greek ὄνομα name + -mantic, with haplology, after onomantical.

Pronunciation

onomantic

/ˌɒnəˈmantɪk/