1. multi as in multifarious   in favour of, forward   half, partly   many   near, around   Hint Half-n-half Clue   2. peri as in peripatetic   away from   across   near, around   both   Half-n-half Clue   3. extra as in extrapolate   outside, beyond   many   bad, faulty   away from   Half-n-half Clue   4. macro as in macrocosm   large, long   half, partly   out   down   Half-n-half Clue   5. ex as in exculpate   down   below normal, lower   under, less   out   Half-n-half Clue   6. demi as in demigod   half, partly   large, long   earliest, first   down   Half-n-half Clue   7. sym as in symbiotic   in favour of, forward   many   with, together   excessively   Half-n-half Clue