Origin: 1300–50; ME
ava(
u)
ntage < AF, OF
avantage, equiv. to
avant before (
see advance ) +
-age -age; for
ad- see advance 
Synonyms:
2. Advantage, benefit, profit all mean something that is of use or value. Advantage is anything that places one in an improved position, esp. in coping with competition or difficulties: It is to one's advantage to have traveled widely. Benefit is anything that promotes the welfare or improves the state of a person or group: a benefit to society. Profit is any valuable, useful, or helpful gain: profit from trade or experience. 6. serve, avail, help, aid.