A feminine noun meaning 'end,' 'latter part,' or 'final outcome.' Over 60 OT occurrences. The phrase acharith ha-yamim ('latter days') is a key eschatological term pointing to the Messianic age.
Acharith frames the theology of history: 'I know the plans I have for you... to give you a future (acharith) and a hope' (Jeremiah 29:11). The 'latter days' fulfilled in Christ's coming (Hebrews 1:2) and consummated at His return. For the righteous, the end is not termination but transformation.