ˈdekrə̇ˌtōrē, -ˌtȯr-, -ri; də̇ˈkrēd.ər-, dēˈ-, -ētə- adjective
Etymology: Latin decretorius, from decretus (past participle of decernere to decide) + -orius -ory — more at decree
1. archaic : serving to determine : decisive , critical
when the decretory hour of death overtakes you — Cotton Mather
2.
[Latin decret um + English -ory ]
: relating to or fixed by a decree, decision, or judgment
the decretory rigors of a condemning sentence — Robert South
3. obsolete : positive , peremptory