oscillum

From a diminutive of ōs (“mouth”).

• (Classical) IPA^(key): /oːsˈkil.lum/, [oːs̠ˈkɪlːʲʊ̃ˑ]
• (Ecclesiastical) IPA^(key): /oʃˈʃil.lum/, [oʃˈʃilːum]

ōscillum n (genitive ōscillī); second declension

1. a little cavity in the middle of leguminous fruits, where the germ sprouts forth
2. a little mask of Bacchus, hung from trees, so as to be easily moved by the wind

Second-declension noun (neuter).

• ōscillō

obs- +‎ cillō (“to move”)

• (Classical) IPA^(key): /osˈkil.lum/, [ɔs̠ˈkɪlːʲʊ̃ˑ]
• (Ecclesiastical) IPA^(key): /oʃˈʃil.lum/, [oʃˈʃilːum]

oscillum n (genitive oscillī); second declension

1. swing (apparatus)

Second-declension noun (neuter).

• oscillō (“to swing”)

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