As adjectives the difference between precoce and precode
is that precoce
is early (at a time in advance of the usual) while precode
As a noun precome
As an adjective precoce is
early (at a time in advance of the usual).
As adjectives the difference between precocious and precoce
is that precocious
is characterized by exceptionally early development or maturity while precoce
is (obsolete) precocious.