English edit

Etymology edit

From protreptic +‎ -al.

Adjective edit

protreptical (comparative more protreptical, superlative most protreptical)

  1. (obsolete) Adapted to persuade; hortatory; persuasive.
    • February 16, 1668, Seth Ward, The Sinfulness of Infidelity (sermon preached at Whitehall)
      The means used to this purpose are partly didactical, and partly protreptical; demonstrating the truth of the gospel, and then urging the professors of those truths to be stedfast[sic] in the faith, and to beware of infidelity.