出典:Wiktionary
Apparently an irregularly formed diminutive from statua (“statue”) + -culum (diminutive suffix) (with an unexpected change in gender from feminine to neuter, also found in the synonymous statunculum), from statuō (“to erect”), from status (“position, place”), ultimately from the root of sistō (“stand”). Alternatively, derived from the same root by means of the instrument noun suffix -culum, as in operculum (“covering”).[1]
staticulum n (genitive staticulī); second declension