obtentio
From LSJ
ἡ δὲ φύσις φεύγει τὸ ἄπειρον· τὸ μὲν γὰρ ἄπειρον ἀτελές, ἡ δὲ φύσις ἀεὶ ζητεῖ τέλος → nature, however, avoids what is infinite, because the infinite lacks completion and finality, whereas this is what Nature always seeks
Latin > English (Lewis & Short)
ob-tentĭo: ōnis, f. id. II.,
I a covering, veiling; trop., obscurity, darkness (postclass.): aliquid obtentionibus allegoricis claudere, by an allegorical dress, Arn. 5, 181; 5, 182.
Latin > French (Gaffiot 2016)
obtentĭō, ōnis, f. (obtendo), action d’étendre devant : Arn. 5, 36 || [fig.] voile [allégorique] : Arn. 5, 35.