English
claustrophobe
Claustrophobe comes from Latin claustrum ‘a shut-in place’, from Proto-Italic *klaudō ‘to close’, and ultimately from Proto-Indo-European *kleh₂w- ‘key, hook, nail’.
- Proto-Indo-Europeanc. 4500–2500 BCE*kleh₂w-1‘key, hook, nail’reconstructed
- Proto-Italicc. 1500–700 BCE*klaudō1‘to close’reconstructed
- Latinc. 75 BCE–200 CEclaudō2‘to shut, close’
- Latinc. 75 BCE–200 CEclaustrum2‘a shut-in place’
- Englishearliest quotation 1998claustrophobe2
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, Latin claudo
- 2 Wiktionary, English claustrophobe
- Earliest quotation in Wiktionary’s entry: 1998, Jim Mortimore: “She has never considered herself either a claustrophobe or…”.
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*kleh₂w-Wiktionary, Latin claudo‘key, hook, nail’reconstructed
- Proto-Italicc. 1500–700 BCE*klaudōWiktionary, Latin claudo‘to close’reconstructed
- Latinc. 75 BCE–200 CEclaudōWiktionary, English claustrophobe‘to shut, close’
- Latinc. 75 BCE–200 CEclaustrumWiktionary, English claustrophobe‘a shut-in place’
- Englishearliest quotation 1998claustrophobeWiktionary, English claustrophobe. Earliest quotation in Wiktionary’s entry: 1998, Jim Mortimore: “She has never considered herself either a claustrophobe or…”
Linked words
through Proto-Indo-European *kleh₂w- ‘key, hook, nail’
include, cataract, conclave, subclavian, 28 more
through Proto-Italic *klaudō ‘to close’
closet, disclose, enclose, inclusiveness, 26 more
through Latin claudō ‘to shut, close’
close, exclusive, conclusion, closure, inclusion, conclude, inclusive, exclude, preclude, recluse, sluice, occlusion, cloture, 31 more
through Latin claustrum ‘a shut-in place’
Today it means
noun One who suffers from claustrophobia.
Sources
Sources: Wiktionary, “claustrophobe”; the older steps come from the Wiktionary entry for Latin claudo. 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 / Proto-Indo-European *kleh₂w- / claustrophobe