Terminus post quem ("limit after which", often abbreviated to TPQ) and terminus ante quem ("limit before which") specify approximate dates for events. A terminus post quem is the earliest time the event may have happened, and a terminus ante quem is the latest
terminus ante quem
الواصلة
ter·mi·nus an·te quem
النطق
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() From the Latin terminus (“a boundary, a limit”) and ante (“before”) and quem (“which”), the accusative of quī (“what”). Literally meaning "the limit before which".