ostiolum

Latin

Etymology

From ōstium +‎ -olum (diminutive suffix).

Noun

ōstiolum n (genitive ōstiolī); second declension

1. diminutive of ōstium (“door”): small door

Declension

Second-declension noun (neuter).

	singular	plural
nominative	ōstiolum	ōstiola
genitive	ōstiolī	ōstiolōrum
dative	ōstiolō	ōstiolīs
accusative	ōstiolum	ōstiola
ablative	ōstiolō	ōstiolīs
vocative	ōstiolum	ōstiola

Descendants

• English: ostiole
• French: ostiole
• Galician: ichó
• Italian: ostiolo
• Portuguese: ichó, ostíolo
• Romanian: ușor
• Sicilian: sticchiu (through *ostitulum)

References

• “ostiolum”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• "ostiolum", 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)
• “ostiolum”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.