Predominant (adjective)

1. Having ascendancy, power, authority, or influence over others; superior; preeminent; prevalent.
2. Most frequent or common; prevailing.

Origin:

From medieval latin praedominans, present participle of praedominari, from latin prae- + dominari.

Examples:

1. The company's predominant market share gave it a significant competitive advantage.
2. The predominant color of the painting was blue.
3. In this region, the predominant religion is Islam.