I. (ˈ)pōst|häk adverb
Etymology: Latin; from the use of the proposition post hoc, ergo propter hoc meaning “after this, therefore because of this” as an example of the fallacy of arguing from mere temporal sequence to cause and effect relationship
: after this — compare : propter hoc
II. ˈpōst ˈhäk adjective
Etymology: post hoc , adverb
1. : relating to or being the fallacy of arguing from a temporal sequence to a causal relation
2. : formulated after the fact
a post hoc rationalization