operositas
From LSJ
ζηλοῦτε δὲ τὰ χαρίσματα τὰ μείζονα. Καὶ ἔτι καθ᾽ ὑπερβολὴν ὁδὸν ὑμῖν δείκνυμι (1 Corinthians 12:31) → But go ahead and strive for the greater gifts. And I'm about to show you a still more excellent way.
Latin > English (Lewis & Short)
ŏpĕrōsĭtas: ātis, f. operosus,
I excessive pains, overmuch nicety, elaborate workmanship (post-Aug.): est etiam, quae περιεργία vocatur, supervacua, ut sic dixerim, operositas, Quint. 8, 3, 55: operositas suadendi, Tert. Anim. 2 fin.: vitreorum, Vop. Tac. 11.