aorist vs past tense

aorist

noun
  • A verb paradigm found in certain languages, usually an unmarked form or one that expresses the perfective or aorist aspect. 

  • A particular verb in the aorist. 

adj
  • Of or pertaining to a verb in the aorist aspect. 

past tense

noun
  • A grammatical form (often a verb form) that is used in a conditional expression to refer to an event, transaction, occurrence, or object that is hypothetical and often counterfactual. 

  • A grammatical form (often a verb form) that refers to an event, transaction, occurrence, or object that happened (or had happened), or existed, at some time before now (the applicable reference time). 

How often have the words aorist and past tense occurred in a corpus of books? (source: Google Ngram Viewer )