conventiculum

Borrowed from Latin conventiculum, diminutive of conventus (“meeting; conjunction; agreement”)

conventiculum (plural conventicula)

1. A short intensive immersion workshop where participants speak only Latin (or sometimes Ancient Greek) from morning to night, typically featuring conversation circles, games, lectures, meals, and excursions, all conducted exclusively in the ancient language.
   • 2014 July 24, “'Dead' Language Resurrected at UK”, in University of Kentucky Now University News‎^[1], archived from the original on 9 December 2025:

     Even while eating their lunch, conventiculum attendees strictly adhere to the Latin-only rule. […] The first conventiculum had just 12 participants, but now the event boasts an enrollment of 85 Latin enthusiasts from all over the world.

   • 2023 July 14, “Latin Conventiculum -- Immersive Spoken Latin”, in Duke Department of Classical Studies‎^[2], archived from the original on 27 March 2025:

     The Conventiculum was five days long and a true test of the skills I had learned so far at Duke

• rusticatio

Diminutive of conventus (“meeting; conjunction; agreement”).

conventiculum n (genitive conventiculī); second declension

1. assembly, meeting, association (or the place involved)

Second-declension noun (neuter).

• “conventiculum”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “conventiculum”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers
• "conventiculum", in Charles du Fresne du Cange, Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• “conventiculum”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.