vestibulum

English

Unadapted borrowing from Latin vestibulum (“a forecourt, entrance court; an entrance”). Doublet of vestibule.

vestibulum (plural vestibula)

(zootomy) A cavity into which, in certain bryozoans, the esophagus and anus open.
(anatomy) The vestibule of the ear.

“vestibulum”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.

Uncertain. Possibilities include:

From vestiō (“to dress, clothe, vest”) +‎ -bulum (“place, location”, nominal suffix).
From unattested *vestis ("a feeding") or *vestus ("fed"), from the Proto-Indo-European root *wes- (“to graze”).^[1]
For *verostabulum, from unattested *verus or *verum ("door") (cf. aperiō) and stabulum.^[2]
From verrō (“I sweep”)
From unattested *vestis, from Proto-Indo-European *h₂wéstis, which is equivalent to Old English wist (“being,existence”)
From vestis +‎ stabulum
From vē- +‎ stabulum

vestibulum n (genitive vestibulī); second declension

→ Catalan: vestíbul
→ English: vestibulum
→ French: vestibule
- → English: vestibule
- → German: Vestibül
- → Romanian: vestibul
- → Russian: вестибюль (vestibjulʹ)
→ Galician: vestíbulo
→ Italian: vestibolo
→ Piedmontese: vestìbul
→ Polish: westybul
→ Portuguese: vestíbulo
→ Russian: вестибюль (vestibjulʹ)
→ Slovak: vestibul
→ Spanish: vestíbulo

“vestibulum”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
“vestibulum”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
vestibulum in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
vestibulum in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
“vestibulum”, in Harry Thurston Peck, editor (1898), Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
“vestibulum”, in William Smith et al., editor (1890), A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin

^ De Vaan, Michiel (2008) “vestibulum”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, page 671
^ Walde, Alois, Hofmann, Johann Baptist (1954) “vestibulum”, in Lateinisches etymologisches Wörterbuch (in German), 3rd edition, volume 2, Heidelberg: Carl Winter, page 774