aenigmaticus
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
aenigmaticus aenigmatica, aenigmaticum ADJ :: enigmatic, like an enigma; obscure; puzzling
Latin > English (Lewis & Short)
aenigmăticus: a, um, adj. aenigma,
I like an enigma, obscure, enigmatic: ille clarum esse somnium dixit, et nihil aenigmaticum, nihil dubium continere, Cassiod. H. Eccl. 9, 4.