Etymograph

English

strongbox

From strong + box.

A compound of strong + box

Proto-Indo-European *strengʰ- ‘taut’

Proto-Germanic *strangaz ‘tight’

Proto-West Germanic *strang ‘severe’

Old English strang

Middle English strong

English strong

Late Latin buxis ‘box’

Proto-West Germanic *buhsā ‘box’

Old English box ‘box, case’

Middle English box ‘container’

English box

Today it means

noun A sturdy box with a lock, for storing valuables.

Sources

Sources: Wiktionary, “strongbox”. 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 / strongbox