LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

iapō̆nus

iapō̆nus (feminine iapō̆na, neuter iapō̆num)
Classical[jaˈpoː.nʊs]Ecclesiastical[jaˈpɔː.nus]

Meaning

  1. adjectiveJapanese

Declension

singular
formmasculinefeminineneuter
nominativeiapō̆nusiapō̆naiapō̆num
genitiveiapō̆nīiapō̆naeiapō̆nī
dativeiapō̆nōiapō̆naeiapō̆nō
accusativeiapō̆numiapō̆namiapō̆num
ablativeiapō̆nōiapō̆nāiapō̆nō
vocativeiapō̆neiapō̆naiapō̆num
plural
formmasculinefeminineneuter
nominativeiapō̆nīiapō̆naeiapō̆na
genitiveiapō̆nōrumiapō̆nārumiapō̆nōrum
dativeiapō̆nīsiapō̆nīsiapō̆nīs
accusativeiapō̆nōsiapō̆nāsiapō̆na
ablativeiapō̆nīsiapō̆nīsiapō̆nīs
vocativeiapō̆nīiapō̆naeiapō̆na

Origins

Hokkien 日本 (Ji̍t-pún)bor. Malay Jepangbor. Portuguese Japãobor. French Japon? Proto-Indo-European *-(i)yós Proto-Italic *-ijos Proto-Italic *-ios Old Latin -ios Latin -ius Latin -ia Latin Iapō̆nia Proto-Indo-European *-ós Proto-Indo-European *-os Proto-Indo-European *-ós Proto-Indo-European *-ós Proto-Indo-European *-ós Proto-Indo-European *-ós Proto-Indo-European *-os Proto-Italic *-os Archaic Latin -os Latin -us Latin iapō̆nus From Iapō̆nia (“Japan”) + -us.

Quick answers

What does iapō̆nus mean in Latin?
iapō̆nus, a adjective, means “Japanese”.
How do you pronounce iapō̆nus?
In classical Latin, [jaˈpoː.nʊs]; in ecclesiastical (church) Latin, [jaˈpɔː.nus].