English
throughbore
From through + bore.
Proto-Indo-European *terh₂- ‘to cross over, pass through’
Proto-Germanic *þurhw ‘through’
Old English þurh ‘through’
Middle English thurgh
English through
Proto-Indo-European *bʰerH- ‘to pierce’
Proto-Germanic *burōną ‘to drill, pierce’
Proto-West Germanic *borōn ‘to drill, pierce’
Old English borian ‘to pierce’
Middle English boren
English bore
Today it means
noun A cylindrical hole that has been bored through something.
Sources
Sources: Wiktionary, “throughbore”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / throughbore