A suffix of adjectives, creating the superlative level, like in coldest, deepest, greatest, biggest, etc. See -er.
The suffix of 2nd individual single of current and preterit indicative of English verbs, frequently syncopated to -st: because, present singest or singst, doest or dost, hast, etc., preterit sangest, sungest, thoughtest or thoughtst, diddest or didst, hadst, etc.
Abbreviations of founded.
standard amount of time in the fifth time area west of Greenwich, reckoned within 75th meridian; utilized in the eastern United States