Definition of polyhistor in English:

polyhistor

Pronunciation /ˌpälēˈhistər/ /ˌpɑliˈhɪstər/

noun

another term for polymath
‘Her polyglot culture was amazingly rich and full, ranging from the classics to Schulz' Peanuts cartoons in multi-disciplinary liberation: a true polyhistor.’
  • ‘As a historian-type, gadfly, civil libertarian, civics junkie & polyhistor I came across the book and had to read it.’

Origin

Late 16th century from Greek poluistōr ‘very learned’, from polu- ‘much, very’ + histōr ‘wise man’.