1. arch as in archive   far, distant   against   with, together   chief, main, first   Hint Half-n-half Clue   2. ob as in obloquy   not   against   back, again   chief, main, first   Half-n-half Clue   3. retro as in retrospective   backward   new   after   all, whole   Half-n-half Clue   4. per as in perennial   after   chief, main, first   not   through, complete   Half-n-half Clue   5. post as in posthumous   above, over   meet, with, together   after   far, distant   Half-n-half Clue   6. super as in superfluous   through, complete   above, over   backward   back, again   Half-n-half Clue   7. para as in paragon   back, again   chief, main, first   related, beyond   above, over   Half-n-half Clue