sinisteritas
From LSJ
ὡς μήτε τὰ γενόμενα ἐξ ἀνθρώπων τῷ χρόνῳ ἐξίτηλα γένηται → in order that so the memory of the past may not be blotted out from among men by time
Latin > English (Lewis & Short)
sĭnistĕrĭtas: ātis, f. sinister, II. A.,
I awkwardness, untowardness, perversity (cf. the opp. dexteritas); perh. only in Plin. Ep. 6, 17, 3; 9, 5, 2.