Is “Prochronism” a Scrabble word?
Yes
PROCHRONISM
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Prochronism
/ˈpɹoʊkɹənɪzm/
noun
1.An error in chronological order in which something is ascribed an earlier time than the actual one.