English
interdine
From inter- + dine.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Proto-Indo-European *h₁yaǵ- ‘to sacrifice’
…
Latin ieiūnus ‘fasting, abstinent, hungry’
Vulgar Latin *disiūnāre ‘to eat breakfast’
Old French disner ‘to dine, eat the main meal of the day’
Middle English dynen ‘to eat lunch’
English dine
Today it means
verb To eat with one another; used especially of people of different castes.
Language periods are conventional ranges, not dates for this word.
Etymograph / interdine