English
interpluvial
From inter- + pluvial.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Proto-Indo-European *plew- ‘to flow, float, wash’
…
Latin pluvia ‘rain’
Latin pluviālis ‘pertaining to rain’
Middle French pluvial
French pluvial ‘pluvial, (relational) rain-’
English pluvial
Today it means
noun A period of decreased rainfall.
Language periods are conventional ranges, not dates for this word.
Etymograph / interpluvial