1. re as in recant   back, again   within   with, together   all, whole   Hint Half-n-half Clue   2. tele as in telekinesis   far, distant   within   related, beyond   meet, with, together   Half-n-half Clue   3. intra as in intravenous   back, again   within   new   after   Half-n-half Clue   4. arch as in archive   meet, with, together   not   chief, main, first   after   Half-n-half Clue   5. retro as in retrospective   back, again   backward   new   against   Half-n-half Clue   6. con as in concomitant   above, over   all, whole   backward   meet, with, together   Half-n-half Clue   7. per as in perennial   through, complete   backward   against   within   Half-n-half Clue