Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
olfactōrĭŏlum, i, n. dim. [olfactorium], a little smelling-bottle, scent-bottle (postclass.): olfactoriola vascula sunt muliebria, in quibus odoramenta gestantur, Isid. Orig. 19, 31; Vulg. Isa. 3, 20, et Hier. in loc.