Was is included in the Glossary to provide a reasonably complete view of the most irregular verb in the English language: ‘to be’, of central importance in the search for the Truth, as an essay titled ‘Being and Truth: An Etymological Study’ from 2011 illustrates.
By realizing Isness or Beingness, we can thus return Home, as Sanskrit and Persian words that have evolved from the PIE base *wes-¹ indicates.
Old English wæs, past tense singular of wesan ‘to remain’, from PIE base *wes-¹ ‘to remain, abide, dwell, live’, with a sense ‘continue to be’. It was originally a distinct verb, but came to provide the past tense of the verb am, which had only a present tense.