before: former, of long standing, ex-

after: very old, ancient

before: certain

after: sure, definite

before: various

after: different

before: half

 after: average

before: same, very

after: -self

before: another

after: brand-new

before: unfortunate, pitiful

after: poor

before: own (intensifier)

after: own (ownership)

before: sheer

after: pure

before: rare (few)

after: strange, odd

before: just, mere

after: simple-minded

before: only, single

after: unique

before: old (of long standing)

after: old (years)