"speculative, based on presumption or probability," mid-15c., from Medieval Latin presumptivus, from Late Latin praesumptivus, from Latin praesumpt- past-participle stem of praesumere (see presume). The heir presumptive (1620s) is "presumed" to be the heir if the heir apparent is unavailable. Related: Presumptively.
the presumptive heir (or heir apparent)
a strong presumptive case is made out
presumptive evidence
presto
presumable
presumably
presume
presumption
presumptive
presumptuous
presuppose
presupposition
pret a porter
pre-teen