Final answer:
The word that means both 'added decoration' and 'to succeed' is 'embellish,' while 'complement' and 'compliment' are often confused but have different meanings.
Step-by-step explanation:
The word you're referring to that can mean both an added decoration and to succeed or do well is embellish. However, the context you provided seems to be confusing two different words, complement and compliment. Complement is when something adds to or completes another thing, for example, 'The fresh gray paint complements the exterior stone of the house.' On the other hand, compliment refers to an expression of praise or an approving remark, such as when people say, 'I compliment the chef for the excellent meal.' Additionally, complimentary can also mean 'free' or 'without cost,' for instance, 'They received complimentary tickets to the game for selling advertising space for the newspaper.'