English
interdeltaic
From inter- + deltaic.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Today it means
adj The intertidal portion of a coastal river delta.
Language periods are conventional ranges, not dates for this word.
Etymograph / interdeltaic