prochronism
Noun
Meaning
The dating of an event before the time it happened; an antedating; -- opposed to metachronism.
Source: Webster's dictionarySynonyms
anticipation
anachronism
lateness
misapplication
prolepsis
antedate
earliness
misdate
postdate
tardiness
antedating
misdating
postdating
parachronism
metachronism