Lewis & Short

prae-mētor, ātus, 1, v. dep. a., to measure or measure out beforehand (post-class.), Sol. 40 (dub.; al. metatum).
Hence, in pass. signif.: praemētātus, a, um, measured or meted out beforehand: praemetata divūm itinera, predestined, Mart. Cap. 8, § 811.