(linguistics) Also secondary. (of Latin, Greek, or Sanskrit verb tenses) referring to past time
Usage note
A distinction is usually made between historic (important, significant) and historical (pertaining to history): a historic decision; a historical perspective
Word Origin and History for historic
adj.
1660s, probably a back-formation from historical, perhaps influenced by French historique. What is historic is noted or celebrated in history; what is historical deals with history.