English
interbeacon
From inter- + beacon.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Proto-Indo-European *bʰeh₂- ‘to shine, glow light’
Proto-Germanic *baukną ‘sign, symbol’
Proto-West Germanic *baukn ‘sign, symbol, signal’
Old English bēacn ‘sign, signal’
Middle English beken ‘a beacon’
English beacon
Today it means
adj between (adjacent) beacons (in any of various contexts)
Language periods are conventional ranges, not dates for this word.
Etymograph / interbeacon