Definition of prochronism in English:

prochronism

noun

  • An error in chronology, in which an event is given an earlier date than the true one.

    • ‘Sir Thomas did not know that the prochronism which he thought absurd pervaded every part of organic structure.’
    • ‘But if one means by the term what Petty meant by it, the prochronism is one of decades, not centuries.’

Origin

Mid 17th century: from pro- ‘before’ + Greek khronos time + -ism.

Pronunciation:

prochronism

/ˈprəʊkrənɪz(ə)m/