Synonyms For "Past" :
1 syllable:
by, gone, last, late, old, then, ult
2 syllables:
ago, agone, ancient, bygone, bypast, early, erstwhile, foregone, former, knightly, olden, onetime, other, quondam, recent, sometime
3 syllables:
chivalric, departed, historic, medieval, noncurrent, outgoing, preceding, previous, ultimo, yesteryear
4 syllables:
historical, prehistoric, retiring