English

internuptial

From inter- + nuptial.

Proto-Indo-European *h₁én ‘in’

Proto-Indo-European *h₁entér ‘between’

Proto-Italic *n̥ter ‘between’

Latin inter ‘between’

Proto-Indo-European *snewbʰ- ‘to marry, to wed’

Latin nūbō ‘to marry, to take as husband’

Latin nūptiae ‘wedding’

Latin nūptiālis ‘pertaining to marriage’

Today it means

adj of, or related to intermarriage

Language periods are conventional ranges, not dates for this word.

Etymograph / internuptial