Conflux

a flowing together, or into each other, as rivers or their tributaries; a confluence.

Examples: conflux of company, 1647; of eternities, 1831; of ill humours, 1658; of misery, 1779; of the mob, 1710; of riches, 1694; of second causes, 1654; of several populations, 1875; of several springs, 1612; of sick persons, 1836; of splendid actions, 1877; of strangers to the city, 1699; of waters, 1698.

con·flux / ˈkänˌfləks/ • n. another term for confluence.