semihistorical

From semi- +‎ historical.

semihistorical (not comparable)

1. Half or partly historical (and partly fictitious).
   • c. 1855, George Cornewall Lewis, An Inquiry Into the Credibility of the Early Roman History:

     The application of the rules of evidence to this semi-historical and crepuscular period - a period of which some knowledge has been preserved

• “semihistorical”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.