For thou preventest
to project (one self), i.e. precede; hence, to anticipate, hasten, meet (usually for help) -- come (go, (flee) before, + disappoint, meet, prevent.
him with the blessings
benediction; by implication prosperity -- blessing, liberal, pool, present.
good (as an adjective) in the widest sense; used likewise as a noun
to place (in a very wide application) -- apply, appoint, array, bring, consider, lay (up), let alone, look, make, mark, put (on), + regard, set, shew, be stayed, take.
a crown -- crown.
of pure gold
pure (gold); hence, gold itself (as refined) -- fine (pure) gold.
on his head
the head (as most easily shaken), whether literal or figurative (in many applications, of place, time, rank, itc.)